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[in-kred-uh-buh l] /ɪnˈkrɛd ə bəl/
so extraordinary as to seem impossible:
incredible speed.
not credible; hard to believe; unbelievable:
The plot of the book is incredible.
Origin of incredible
late Middle English
1375-1425; late Middle English < Latin incrēdibilis. See in-3, credible
Related forms
incredibility, incredibleness, noun
incredibly, adverb
Can be confused
incredible, incredulous.
2. farfetched, astonishing, preposterous. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for incredible
Contemporary Examples
Historical Examples
  • Whatever it was that had called forth that incredible mass, was scheduled to proceed uptown from far downtown, and that very soon.

    Fanny Herself Edna Ferber
  • His uncle had assured him of something else, something so glorious as to be incredible.

    The Northern Iron George A. Birmingham
  • Much of his story, as told to me then, seemed strange and incredible—in truth, the offspring of a brain not well balanced.

    The Von Toodleburgs F. Colburn Adams
  • With what incredible recklessness had he been acting all these months!

    Robert Elsmere Mrs. Humphry Ward
  • But, incredible though it seemed, the leading pursuer had been tracking Ali while riding at full speed.

    Hi Jolly! James Arthur Kjelgaard
British Dictionary definitions for incredible


beyond belief or understanding; unbelievable
(informal) marvellous; amazing
Derived Forms
incredibility, incredibleness, noun
incredibly, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for incredible

early 15c., "unbelievable," from Latin incredibilis "not to be believed," from in- "not" (see in- (1)) + credibilis "worthy of belief" (see credit). Used c.1400 in a now-extinct sense of "unbelieving, incredulous." Related: Incredibly.

Online Etymology Dictionary, © 2010 Douglas Harper
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