adj. 1. Extremely pleasing or successful: a fabulous vacation. 2. Astonishing or extraordinary: the fabulous endurance of a marathon runner. 3. a. Of the nature of a fable or myth; legendary. b. Told of or celebrated in fables or legends. [Middle English, mythical, from Old French fabuleux, from Latin fābulōsus, from fābula, fable; see FABLE.] fabu·lous·ly adv. fabu·lous·ness n. |
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