1. Extremely pleasing or successful: a fabulous vacation.
2. Barely credible; astonishing: the fabulous endurance of a marathon runner.
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.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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