List of fantastical synonyms and fantastical related words.
Barmecidal, Barmecide, Gothic, absurd, airy, antic, appalling, apparent, apparitional, arbitrary, astonishing, autistic, baroque, beguiling, bewildering, beyond belief, bizarre, brain-born, capricious, chimeric, cockamamie, concocted, conspicuous, cooked-up, cranky, crazy, crotchety, deceptive, delusional, delusionary, delusive, delusory, dereistic, dream-built, dreamlike, dreamy, egregious, enigmatic, erroneous, exceptional, extraordinary, extravagant, fabricated, fabulous, fallacious, false, fancied, fanciful, fancy-born, fancy-built, fancy-woven, fantasied, fantasque, fantastic, fascinating, fictional, fictitious, figmental, flaky, florid, foolish, forged, formidable, freakish, grotesque, harebrained, hatched, high-flown, humorsome, illusional, illusionary, illusive, illusory, imaginary, impossible, incomprehensible, inconceivable, incredible, invented, kinky, laughable, legendary, ludicrous, made-up, maggoty, manufactured, marked, marvelous, miraculous, misleading, monstrous, moody, motiveless, mythical, nonsensical, notable, noteworthy, noticeable, notional, of mark, ostensible, outlandish, outrageous, outre, outstanding, passing strange, petulant, phantasmagoric, phantasmal, phantom, phenomenal, poppycockish, preposterous, prodigious, put-up, puzzling, quirky, rare, remarkable, ridiculous, rococo, seeming, self-deceptive, self-deluding, sensational, signal, specious, spectral, strange, striking, stupendous, superior, supposititious, temperamental, trumped-up, unaccountable, unactual, unbelievable, uncommon, unexpected, unfounded, unheard-of, unimaginable, unique, unprecedented, unreal, unreasonable, unrestrained, unsubstantial, vagarious, vagrant, visionary, wanton, wayward, weird, whimsical, wild, wonderful, wondrous