1. (a.) Astonishing; incredible; extremely successful\; feigned, as a story or fable; related in fable; devised; invented; not real; fictitious; as, a fabulous description; a fabulous hero.

2. (a.) Passing belief; exceedingly great; as, a fabulous price.

a bit much abandoned ace allegoric amazing appalling astonishing astounding beguiling bewildering boundless celebrated concocted conspicuous cooked-up cool copacetic egregious enigmatic enormous exaggerated exceptional excessive exorbitant extraordinary extravagant extreme fab fabled fabricated fancied fanciful fancy fantasied fantastic fascinating fictional fictitious fictive figmental forged formidable gigantic gluttonous great groovy hatched high hot howling hyperbolic hypertrophied imaginary immoderate incomprehensible inconceivable incontinent incredible indescribable ineffable inordinate intemperate invented keen legendary made-up magic make-believe manufactured marked marvelous miraculous monstrous mythic mythical mythicized mythified mythological mythopoeic mythopoetic neat nonactual nonfactual nonrealistic notable noteworthy noticeable of mark out of bounds out of sight outlandish outrageous outstanding overbig overdeveloped overgreat overgrown overlarge overmuch overweening parabolic passing strange phenomenal portentous preposterous prodigious put-up puzzling rare rattling remarkable romantic romanticized sensational signal smashing steep stiff storied strange striking stupefying stupendous super superb superior terrific thumping thundering too much trumped-up unbelievable unbridled uncommon unconscionable undue unexampled unheard-of unimaginable unique unparalleled unprecedented unreal unreasonable unrestrained unspeakable whopping wonderful wondrous