Synonyms for Crazy (same or very similar meaning)
WordNet sense 1 (someone deranged and possibly dangerous):
loony, weirdo, looney
WordNet sense 2 (affected with madness or insanity):
demented, distracted, disturbed, mad, sick, unbalanced, unhinged, brainsick
WordNet sense 3 (afflicted with or characteristic of mental derangement):
insane
WordNet sense 4 (foolish; totally unsound):
half-baked, screwball, softheaded
WordNet sense 5 (not practical; not workable or not given to practical matters):
impractical
WordNet sense 6 (marked by foolish or unreasoning fondness):
dotty, enamored, gaga, infatuated, smitten, in love
WordNet sense 7 (feeling or showing love and affection):
loving
WordNet sense 8 (being definitely out of the ordinary and unexpected; slightly odd or even a bit weird):
strange, unusual
WordNet sense 9 (in an aroused state):
excited
WordNet sense 10 (intensely enthusiastic about or preoccupied with):
wild
WordNet sense 11 (having or showing great excitement and interest):
enthusiastic
From the ODE community, based on WordNet
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