Fantastic Synonyms

Tremendous, great, enormous, striking, outstanding, monumental, marvellous, sensational, superb, excellent, first-rate, dazzling, breathtaking, fab, super, ace, A1, cool, awesome, way-out, brilliant, smashing, bonzer, topping, top-notch, remarkable, terrific, huge, impressive, phenomenal, overwhelming, wonderful, magnificent, superlative, very good, first-class, out of this world, fabulous, mega, stellar, magic, cracking, wicked, amazeballs, def, brill, bosting, spiffing, tip-top, and capital.

Fanciful, extraordinary, wild, absurd, nonsensical, unbelievable, implausible, unlikely, dubious, peculiar, weird, insane, capricious, visionary, unreal, make-believe, cock-eyed, off the wall, potty, bizarre, queer, freakish, exotic, imaginative, ornate, rococo, phantasmagoric, extravagant, irrational, mad, far-fetched, incredible, unthinkable, improbable, doubtful, strange, odd, eccentric, whimsical, imaginary, romantic, illusory, crazy, oddball, barmy, daft, outlandish, grotesque, surreal, quaint, elaborate, intricate, baroque, and Kafkaesque.