Learn That Word
  • all about
    All about YOU

    We create every session just for you.
    Nothing is out-of-the-box!

    Advance on your word journey in fast, easy steps. Focus on learning what’s important to you; we’ll manage your progress behind the scenes.

    LearnThatWord is a complete solution. We’re your virtual mom, catering to your every need and helping you be the best you can be.

  • word

    I'm WordGenie™, your personal coach.
    Your wordly wish is my command!

    Unleash my powers, dear master!
    It’s all laid out for you, for one-click magic!

    Let me guide you on your word journey, so you’ll advance in well-planned, logical steps.

    What gives me such magical powers?

    Learning from over
    30 vocabulary experts.

    Deep analysis of millions of texts.

    Years and years of obsessing
    about words.

    Sleepless sleepless nights
    dancing with databases.

  • multi-

    Explore each word’s context, its nuances and flavors, to get a sense of how to use it.

    Integrated in each quiz is our Open Dictionary of English, ODE.
    It’s the richest and most interesting learners’ dictionary available. Explore words through:

    Pronunciations from around the world
    100s of usage examples
    Idioms and limericks
    Interactive thesaurus
    Definitions from multiple sources
    Translations in 37 languages
    Synonyms, antonyms
    Words that rhyme
    Origin and root word information
    Verb conjugations
    Tutoring comments and trivia

  • smart
    SMART progress

    You want results, not busy work!

    At LearnThatWord, every session is targeted, interesting, and made just for you.

    We check off words you know, so you focus your energy on those that need more practice.

    Your individualized learning plan presents the right words for review at the right time.

    Get lasting results 10x faster than with any other vocabulary study tool.

  • fast
    Fast & Fun

    Sessions are lightning-fast and hassle-free.

    We don’t depend on gimmicks or “effects” to make sessions fun.

    Our members love them for their smart design and effectiveness.

    You’ll appreciate the fast progress you make even more than the rewards and prizes you earn.

    Boost your skills in privacy, at your own speed, without grades, pressure, or embarrassment.

  • lasting
    Lasting RESULTS

    A word turns into vocabulary as you learn it “by heart.” It’s that moment when you no longer have to think about it before you use it.

    Once you reach this level of “automaticity,” the word is yours forever. You will never forget it.

    LearnThatWord is the only fully managed solution that builds this automaticity.

    You’ll meet each word repeatedly over time and explore its nuances and “flavors.” Our multimedia resources bring words to life.

    Proven study methods, accelerated by adaptive and individualized coaching, make words “stick.” New words turn into vocabulary that moves you forward.

    We are so confident in the results, we guarantee them!

  • non

    Our goal is to empower you by giving you the vocabulary you need to succeed with confidence.

    We provide unlimited free tutoring to students worldwide.

    Upgrade anytime to enjoy premium features. Premium members support our global literacy campaign, Vocabulary Junction, and the expansion of our collaborative learners’ dictionary.


by Transposh - translation plugin for wordpress
modify this list - back

Complicated Words

List #: 9050

Created: 12/28/2011

Modified: 12/28/2011

List of Words:

Add this list Hide words

(part 1) (30 words)

aardwolf, abacus, abalienation, abalone, abandonment, abattoir, abbot, abbreviate, abbreviation, abdicate, abdomen, abdominal, abecedarium, abecedarius, aberrant, aberration, abeyance, abhor, abhorrence, abidance, ability, abiogenist, abjuration, ablution, abolition, abominable, aborigine, abracadabra, abrasion, abrasive

Add this list Hide words

(part 2) (30 words)

abrogated, abruptly, abscess, abscissa, abscond, abscondence, abseil, absence, abstemious, abstention, abstinence, abstractive, abstruse, absurdity, abundance, abysmal, abysmally, acacia, academia, academic, acarology, accede, accelerate, accelerator, accentuator, acceptance, accessible, accession, accessorial, accidental

Add this list Hide words

(part 3) (30 words)

accipiter, acclimatization, acclivity, accolade, accommodable, accommodate, accomplice, accordionist, accreditation, accrescent, accrual, accrue, accrued, accumulate, accurate, accusatory, acerbity, acescent, acetate, acetylene, achondrite, achromatism, acicular, acknowledge, acknowledging, acme, acolyte, acorn, acoustician, acoustics

Add this list Hide words

(part 4) (30 words)

acquaintance, acquiesce, acquiescence, acquittal, acre, Acer, acrid, acrimonious, acrobat, acronym, acropolis, acrostic, acrylic, actinic, actuary, acuate, aculeate, acumen, acuminate, acuminate, acupuncture, adactylous, adage, adagio, adamantine, addlepated, adenoidal, adequate, adequation, adhere

Add this list Hide words

(part 5) (30 words)

adherence, adherent, adhesional, adiaphorism, adipose, adjacency, adjacent, adjourn, adjudicate, adjunct, adjuvant, admeasure, adminicle, admiral, admire, admonitory, adolescence, Adonis, adsmith, adumbrate, advantageous, adverb, adversary, adverse, advisory, advocaat, advocate, advocate, aerial, aerial

Add this list Hide words

(part 6) (29 words)

aerodynamic, aeronautics, aerosol, Aeschylean, affability, affable, affectionate, affianced, affidavit, affiliate, affiliate, affiliation, affinity, affirmative, afflatus, affluence, aforementioned, afterwale, agape, agape, agate, agelicism, agenda, agglomerate, agglomerate, agglomeration, agglutinate, agglutinate, aggrandizement

Add this list Hide words

(part 7) (28 words)

aggravate, aggregate, aggregate, aghast, agiotage, agitated, agnostic, agoraphobia, agrarian, agreeable, agriology, agronomy, aikido, ailanthus, aileron, airborne, airedale, akimbo, akropodion, aktograph, alabaster, alacrity, alar, alary, albatross, albedo, albedometer, albeit

Add this list Hide words

(part 8) (30 words)

albino, alchemy, alcohol, alcoholature, alcoholism, alcove, aleatoric, aleatory, alegar, alfalfa, alfresco, algorithm, alibi, alien, alienation, aliferous, alimentary, aliquot, alkali, allargando, allayment, allege, allegiance, allegory, allegro, allemande, allergy, alliance, alligator, allision

Add this list Hide words

(part 9) (30 words)

alliteration, allocate, allocation, alluded, alluviation, almond, almoner, alnico, aloof, alopecia, alpaca, alpenglow, alphabet, altazimuth, altercation, altiplano, altitude, altogether, altruism, altruistically, alveolate, amadelphous, amalgam, amanuensis, amaryllis, amateur, amber, ambidextrous, ambiguity, ambivalent

Add this list Hide words

(part 10) (29 words)

amblyopia, ambrosia, ambulation, ambuscade, ambush, ameliorate, amelioration, amenable, amendment, amertoy, amethyst, amiable, amicable, amice, amiss, amity, ammeter, ammonia, amnesia, amole, amortization, amphibian, amphibious, amphora, ampicillin, amulet, amuse, amygdaline, anabasis

Add this list Hide words

(part 11) (30 words)

anabibazon, anabolic, anachronism, anachronous, anaconda, anaglyph, anagnorisis, anagogic, analects, analemma, analgesic, analogy, analysand, ananym, anaphora, anarchy, anastomosis, anastrophe, anathema, anaudia, anautogenous, ancestor, anchovy, ancillary, anecdote, anemochore, anemometer, anemone, aneroid, anglaise

Add this list Hide words

(part 12) (30 words)

anguish, anhydride, anise, anisette, ankh, anklet, anneal, annihilate, anniversary, annotation, annoyance, annual, annuity, annul, anodyne, anomalous, anomaly, anon, anonymous, anorthopia, anosmic, anschluss, anserous, antarctic, antecedent, antecessor, antediluvian, antelope, antenna, anterior

Add this list Hide words

(part 13) (30 words)

anteroom, anthography, anthology, anthroponymy, anticyclone, antifoulant, antilogy, antimacassar, antimony, antipasto, antipodal, antiquarian, antique, antiquity, antiseptic, antithesis, antonomasia, antonym, anxiety, apartheid, apastron, apathetic, apathy, aperitif, aperture, apex, aphasia, aphelion, aphid, aphorism

Add this list Hide words

(part 14) (30 words)

apiarian, apiary, apiculus, aplomb, apocalypse, apocope, apocryphal, apogee, apolaustic, apologue, apology, apoplexy, aporia, aposiopesis, apostle, apostrophe, apothecary, appalling, appaloosa, apparatchik, apparatus, apparel, apparition, appealed, appease, appellation, appellative, appendages, appendant, appendicitis

Add this list Hide words

(part 15) (30 words)

appetite, apprentice, approbation, appropriate, appropriate, appurtenance, appurtenant, apricot, apropos, apsidal, aquatic, aqueduct, aquiline, arabesque, arability, arachnid, arbiter, arboreal, arboret, arbuscle, arcanum, archaic, archangel, archelogy, archery, archipelago, architecture, archivalia, arcing, arctic

Add this list Hide words

(part 16) (30 words)

ardency, ardent, arduous, arenaceous, arenicolous, areology, aerology, aretalogy, argillaceous, argosy, argot, argumentative, aristoi, arithmocracy, armadillo, Armageddon, armaments, armature, armistice, arpeggio, arraignment, arrasene, arrive, arrogance, arrogant, arsenal, arsenic, artesian, arthritis, arthroscopy

Add this list Hide words

(part 17) (30 words)

artichoke, article, articulacy, artifice, artificial, artillerist, artillery, arviculture, ascend, ascension, ascertained, asceticism, ascribable, asinine, askew, asparagus, aspartame, aspersion, asphalt, asphodel, asphyxiant, asphyxiate, asphyxiated, aspirin, assailant, assassin, assassinate, assemblage, assess, asseveration

Add this list Hide words

(part 18) (30 words)

assiduously, assimilate, assimilation, assonance, assuage, assuagement, Assyrian, asthmatic, astigmatism, astringe, astrogator, astronomy, astuteness, asylum, asymmetry, atelier, athletic, atmosphere, atmospheric, atomic, atrabilious, atrichia, atrium, atrocious, atrophy, attenuate, attenuate, attitude, attitudinal, attrition

Add this list Hide words

(part 19) (30 words)

aubade, auctioneer, audacious, audacity, audience, audition, auger, augment, augment, augur, augury, auk, aureate, aureity, aurelian, auricle, auricular, auriferous, aurora, auscultation, auslander, auspices, austere, authentic, author, authoritative, autobahn, autodidact, autonomous, autonomy

Add this list Hide words

(part 20) (30 words)

autopsy, autumn, autumnal, auxiliary, available, avalanche, avalement, avarice, avaricious, averred, aviator, avionics, avocado, avocet, avoirdupois, avuncular, awe, awestruck, awl, awry, axiology, axiom, axunge, ayatollah, Azimuth, azotea, azure, babblative, baboon, babushka

Add this list Hide words

(part 21) (29 words)

babylonian, baccalaureate, bacchanalian, bacciferous, bachelor, bacillus, backfisch, backgammon, bacteriolytic, badgeringly, badigeon, badinage, badminton, baedeker, bagatelle, bagel, baignoire, bailiff, bailiwick, baize, balaclava, balalaika, balbriggan, balcony, balestra, ballast, ballerina, balletomane, ballistic

Add this list Hide words

(part 22) (30 words)

ballistics, balloon, balminess, balmoral, balneation, balsam, balustrade, bamboo, bamboozle, banality, banana, banausic, bandage, bandalore, bandicoot, banditry, banishment, banjo, banjorine, bankruptcy, banquet, baobab, baptismal, baragouin, barbaric, barbarism, barbarous, barbellate, barbican, barbiturate

Add this list Hide words

(part 23) (30 words)

bardiglio, bargain, bargello, bariolage, barker, barnacle, barnacled, barnstorm, barognosis, barometer, baronet, baronial, baroque, barothermograph, barouche, barracks, barrage, barratry, barrel, barren, barricade, barrio, bartizan, bascule, bashful, basilica, basilisk, basin, basmati, bassoon

Add this list Hide words

(part 24) (30 words)

bastion, bathymeter, bathymetry, bathyscaphe, batik, batiste, batrachoid, battalion, bauble, bavardage, bayonet, bayou, bazooka, beachcomber, beacon, beaker, beatitude, beaujolais, beaumontage, beauteous, bedizenment, bedlam, bedstead, beflustered, beforehand, beggar, beguile, beguiling, beguine, behemoth

Add this list Hide words

(part 25) (30 words)

beige, beleaguer, belemnoid, believe, bellicose, belligerent, bellipotent, bellwether, bellwort, belomancy, belton, benediction, beneficence, beneficent, benevolence, benevolent, benignant, benison, bequeath, berceuse, bereave, bereavement, beret, bergamot, bergschrund, bergschrund, beriberi, berouged, berylloid, besmirched

Add this list Hide words

(part 26) (30 words)

besom, bestial, betacism, bethel, bevel, bevy, bewilder, bewitched, bialys, bibelot, biblioclast, bibliography, biblioklept, bibliopegy, bibliothecarial, bibliotics, bicameral, bicentennial, biceps, biennial, bifurcation, bijou, bijouterie, bikini, bilateral, bilge, bilharzia, bilingual, billeted, billiards

Add this list Hide words

(part 27) (30 words)

billionaire, billon, biloculine, bimestrial, bimillenary, binary, binoculars, binomial, bioluminescent, biopsy, bireme, bisagre, biscuit, bise, bize, bisector, bittern, bivouac, bizarre, blague, blandishment, blanquette, blarney, blasphemous, blasphemously, blasphemy, blatant, blather, blatherskite, blazon

Add this list Hide words

(part 28) (30 words)

bleach, bleary, blemish, blenny, blepharal, blessing, blight, blissful, blithe, blitz, blitzkrieg, blizzard, blossom, blossoming, blotch, blouse, bloviate, blucher, bludgeon, blueprint, blunderbuss, bobbin, bobolink, bocaccio, bocage, bodega, boiserie, boisterous, bole, bolero

Add this list Hide words

(part 29) (30 words)

bolide, bolshevik, bombilation, bonanza, bonhomous, boniface, bonnet, bonsai, bookcase, bookkeeper, boomerang, boondoggle, bordelaise, bordereaux, borderline, bore, borealization, borzoi, bosky, botanist, botany, botcher, botuliform, boudoir, bough, bouillabaisse, bouillon, boulevard, boulevardier, boundary

Add this list Hide words

(part 30) (30 words)

bounteous, bountiful, bouquet, bouquiniste, bourgeois, bourgeoisie, boutonniere, bowdlerize, bowery, bowline, boycott, boysenberry, bracelet, brachiate, brachygraphy, brachylogy, bradawl, bradycardia, bradyseism, braggadocio, brankursine, brannigan, brasserie, bratwurst, braunschweiger, bravura, brazen, breach, breakfast, breath

Add this list Hide words

(part 31) (30 words)

breccia, bretelle, brevet, breviloquent, brevity, bribery, bridle, briefcase, brigadier, brigand, brigantine, brightness, brilliant, brimstone, brine, brininess, brioche, broach, broadcaster, brocade, brochette, brochure, brockage, bromeliad, bronchial, bronchitis, brontometer, bronze, brougham, brouhaha

Add this list Hide words

(part 32) (30 words)

brucellosis, bruise, bruit, brujo, brume, brummagem, brumous, brutal, bruxism, buccaneer, buccolingual, buckboard, buckram, bucolic, buddhism, budgetary, buffalo, buffalo, buffoon, buffoonery, bugaboo, bulbous, bulgur, bulletin, bulletinize, bullion, bullionist, bumptiously, bungalow, buoyant

Add this list Hide words

(part 33) (30 words)

buoyantly, buran, bureaucracy, bureaucrat, Burgher, burgherly, burgoo, burin, burly, burrito, burrito, bursar, bursiculate, bursitis, busby, bushel, butte, butte, butterfly, butterscotch, buttress, butyraceous, butyraceous, buzzard, byssinosis, byte, byzantine, cabana, cabaret, cabinet

Add this list Hide words

(part 34) (30 words)

cabochon, cabriole, cache, cachet, cachinnate, cachinnation, cacography, cacophonous, cacophony, cacuminal, cadaver, cadaverous, cadence, cadre, caduceus, cafeteria, caisson, caitiff, cajole, cajolery, calabash, caladium, calamine, calamity, calcium, calculate, calculator, calculiform, calculus, calefacient

Add this list Hide words

(part 35) (30 words)

calendar, calibrate, calico, caliginous, calisthenics, calisthenium, callidity, calligrapher, calliope, callously, callow, caloric, calque, calumet, calumny, calvities, calypso, camaraderie, cameline, cameo, camera, camionette, camisole, camouflage, camouflaged, camoufleur, campanile, camphor, campodeiform, campus

Add this list Hide words

(part 36) (30 words)

canaille, canard, canary, canasta, cancellous, cancrivorous, candelabra, candelabrum, candent, candescent, candidacy, candlewick, candor, canine, canitist, cannelloni, cannibal, cannibalism, cannonade, canny, canoe, canoeist, canopy, cantankerous, cantata, cantatory, canteen, canter, cantilever, cantonment

Add this list Hide words

(part 37) (30 words)

cantor, canvasser, capable, capacious, caparison, capillary, capital, capitatim, capitulate, cappelletti, cappuccino, capriccioso, caprice, capricious, capsize, capstan, capsule, caracole, carafe, caramel, caramelize, carbohydrate, carbonaceous, carbonate, carboy, carcass, carcinogen, cardiac, cardigan, cardinal

Add this list Hide words

(part 38) (30 words)

cardinalate, cardiomegaly, caribou, caricaturable, caricature, carillon, cark, carnage, carnage, carnival, carnivore, carnivorous, carotid, carpaccio, carpenter, carpophagous, carriageable, carrion, carrot, cartel, cartilage, carton, cartonnage, caryatid, cascade, cashew, cashier, cask, casserole, cassoulet

Add this list Hide words

(part 39) (30 words)

cassowary, castanets, castigate, Castilian, casuistic, casuistry, catachresis, cataclysm, cataclysmic, catacomb, catadromous, catalepsy, catalina, catalytic, catamaran, cataphract, catapult, cataract, catarrh, catastasis, catastrophe, catechism, catechumen, category, catenary, catenulate, caterer, caterpillar, caterwaul, cathartic

Add this list Hide words

(part 40) (30 words)

cathedral, cathole, catullian, caucus, caudal, caudillo, cauliflower, causerie, causeway, caustic, cauterize, cavalcade, cavalier, cavalletti, cavalry, caveat, cavernicolous, cavernous, cavil, cavort, cedilla, ceiling, celebrant, celeriac, celeritous, celery, celestial, celibacy, cellarage, cellist

Add this list Hide words

(part 41) (30 words)

cello, cellophane, cellulose, cement, cemetery, cenotaph, censorious, census, centaur, centaury, centennial, centimeter, centipede, centrifugal, centrifuge, centripetal, century, cephalalgia, cephalometry, cephalopod, cepheid, ceraceous, ceramic, ceraunograph, cereal, cerecloth, cerise, cerium, cerography, certainty

Add this list Hide words

(part 42) (30 words)

cerumen, cessation, cetology, chaffinch, chaffseed, chagrin, chalaza, chalice, chalicosis, chamberlain, chamfer, champagne, champagne, champignon, chancel, chancellor, chandelier, chandelle, changeable, chansonnette, chaos, chaotic, chapeau, chapel, chaplaincy, chaplet, character, characteristic, charactonym, charango

Add this list Hide words

(part 43) (30 words)

charcoal, chariot, charlatan, chartaceous, chartreuse, chary, chasm, chasmophyte, chassepot, chassis, chassis, chasuble, chateaubriand, chatoyant, chattel, chaucerian, chauffeur, chaussure, chautauqua, chauvinism, chauvinistic, chayote, cheapskate, cheilion, chemicalize, chemistry, chemotherapy, chenille, cheongsam, chernozem

Add this list Hide words

(part 44) (30 words)

cheroot, chevelure, chianti, chicanery, chicle, chiclero, chieftain, chiffon, chiffonade, chignon, chihuahua, chihuahua, chilblains, chime, chimerical, chimney, chimpanzee, chinchilla, chinook, chiragra, chiropodist, chisel, chistera, chivalrous, chivalry, chlorine, chocolate, cholera, choleric, cholesterol

Add this list Hide words

(part 45) (30 words)

cholesterosis, chonolith, choose, choreographer, chortle, chortling, chorus, chough, chowder, chrematistic, chrestomathy, chromatic, chromium, chromotrichial, chronic, chronically, chronicle, chronological, chrysalis, chrysanthemum, churlish, churn, churrasco, chutney, chymous, ciborium, cicada, cicerone, ciceronian, ciguatera

Add this list Hide words

(part 46) (30 words)

cilantro, cincture, cinematographer, cinereous, cinnabar, cinnamon, cioppino, circadian, circinate, circuit, circuitous, circular, circumambulate, circumlocution, circumstantial, cirrhosis, cislunar, cistern, citadel, citation, cite, citify, citizen, citronella, civitas, clairvoyant, clandestine, claque, claret, clarify

Add this list Hide words

(part 47) (30 words)

clarion, claustrophobe, claustrophobia, clavichord, clavicle, claviger, clematis, clemency, clepsydra, clerisy, clientele, climatology, clinically, clinician, clinquant, clique, cloche, clodhopper, cloistered, clothe, cloture, cloudy, clough, clowder, cluse, cnemial, coacervate, coadjutor, coagulate, coagulate

Add this list Hide words

(part 48) (30 words)

coalesce, coalescence, coalification, coalition, coaming, coaration, coax, coax, coccygeal, cochineal, cochleariform, cockatoo, cocoon, codeine, codicil, codicology, coelostat, coerce, coercion, coeval, coffee, cogent, cogitate, cogitating, cognizant, cognomen, cognoscitive, coherence, cohesion, coincidental

Add this list Hide words

(part 49) (30 words)

cointise, colectomy, colic, collabent, collaborator, collage, collate, collateral, college, collegial, colliery, collocal, colloquial, colloquy, collusion, Cologne, colonel, colonelcy, colonnade, colophon, coloratura, colossal, column, comedienne, comestible, comet, comfort, commemorate, commencement, commendable

Add this list Hide words

(part 50) (30 words)

commensurable, commensurate, commentary, commercial, commercialize, commination, comminute, commiseration, commissary, commissional, commitment, commodious, commorancy, communicate, commute, comparatively, compatible, compelled, compendium, compensable, competency, competently, compilation, complement, comprehend, compulsory, compunction, compunctious, computernik, comradeliness

Add this list Hide words

(part 51) (30 words)

comstockery, concatenate, conceit, conceivable, conceivably, concentrate, concentric, concept, concertina, concerto, concessible, concession, concessionary, conch, conchiform, conchitic, concierge, conciergerie, conciliate, concinnity, conclamant, concoct, concoction, concomitant, concordat, concrescence, concurrence, concussion, condemn, condescended

Add this list Hide words

(part 52) (30 words)

condign, condiment, condolence, condor, conductor, conduit, conferential, confetti, confiscate, conflagration, confluence, confusion, conga, congeal, congenial, congenital, conglobe, conglomerate, conglomerate, congruent, coniferous, conjugal, conjunctiva, Connecticut, connived, connivery, connoisseur, connote, connubial, conqueror

Add this list Hide words

(part 53) (29 words)

conquian, conquistador, consanguinity, conscience, conscientious, consciousness, consecrate, consecutive, consenescence, consensus, consentaneous, conservatory, considerable, consignment, consistory, consomme, consortium, conspiracy, constabulary, constellation, constituent, constitution, constrain, construe, consuetude, consummate, consummate, contagious, container

Add this list Hide words

(part 54) (29 words)

contemplate, contemporaneous, contemptible, contiguous, contingencies, continuum, contour, contraband, contrabass, contrapuntal, contrariety, contretemps, contrition, controversy, contumacious, contumacy, contusion, conundrums, convalescence, convection, convene, convenience, convergent, conversant, convertible, conveyance, convivial, convivially, convolute