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incredible

[in-kred-uh-buh l] /ɪnˈkrɛd ə bəl/
adjective
1.
so extraordinary as to seem impossible:
incredible speed.
2.
not credible; hard to believe; unbelievable:
The plot of the book is incredible.
Origin
late Middle English
1375-1425
1375-1425; late Middle English < Latin incrēdibilis. See in-3, credible
Related forms
incredibility, incredibleness, noun
incredibly, adverb
Can be confused
incredible, incredulous.
Synonyms
2. farfetched, astonishing, preposterous.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for in-credibility

incredible

/ɪnˈkrɛdəbəl/
adjective
1.
beyond belief or understanding; unbelievable
2.
(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 in-credibility
incredible
early 15c., from L. incredibilis "that cannot be believed," from in- "not" + credibilis "worthy of belief" (see credit).
Online Etymology Dictionary, © 2010 Douglas Harper
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3
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