in·croy·a·ble | \aⁿkrwäyȧbl(ᵊ), -b(lə)\
plural -s

Definition of incroyable 

: a French dandy of the late 18th century : dandy, fop

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History and Etymology for incroyable

French, from incroyable, adjective, incredible, from Middle French, from in- in- entry 1 + croyable credible, from croire to believe (from Latin credere) + -able; from their extravagant dress and speech

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to reject or criticize sharply

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