What does "fabulous" mean?

Fabulous: Passing belief; exceedingly great; as, a fabulous price. Macaulay. Fabulous age, that period in the history of a nation of which the only accounts are myths and unverified legends; as, the fabulous age of Greek and Rome. -- Fab"u*lous*ly, adv. -- Fab"u*lous*ness, n.

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