Learn That Word

Synonyms for Unreal (same or very similar meaning)

WordNet sense 1 (resembling a dream):
dreamlike

WordNet sense 2 (based on or having the nature of an illusion):
illusory

WordNet sense 3 (marked by or producing illusion):
illusionary

WordNet sense 4 (not based on fact; dubious):
fanciful, imaginary

WordNet sense 5 (based on or told of in traditional stories; lacking factual basis or historical validity):
fabulous, mythical

WordNet sense 6 (formed or conceived by the imagination):
fictitious

WordNet sense 7 (celebrated in fable or legend):
legendary

WordNet sense 8 (not genuine or real; being an imitation of the genuine article):
false

WordNet sense 9 (contrived by art rather than nature):
artificial

WordNet sense 10 (lacking in substance):
shadowy

WordNet sense 11 (characterized by lightness and insubstantiality; as impalpable or intangible as air):
aerial, aerial

WordNet sense 12 (lacking material form or substance; unreal):
insubstantial, unsubstantial


From the ODE community, based on WordNetadd/edit