[fab.u.lous] adj [ME, fr. L fabulosus, fr. fabula] (15c) 1 a: resembling or suggesting a fable: of an incredible, astonishing, or exaggerated nature "~ wealth" b: wonderful, marvelous "had a ~ time"
2: told in or based on fable syn see fictitious -- fab.u.lous.ly adv -- fab.u.lous.ness n