1. grotesque That is fanciful which is dictated or suggested by fancy independently of more serious considerations; the fantastic is the fanciful with the added elements of whimsicalness and extravagance. T Synonyms: fanciful, chimerical, fantastic, grotesque, imaginative, visionary Antonyms: accurate, commonplace, prosaic, regular, sound, calculable, literal, real, sensible, sure, calculated, ordinary, reasonable, solid, true