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[in-kuh n-tes-tuh-buh l] /ˌɪn kənˈtɛs tə bəl/
incapable of being contested; not open to dispute; incontrovertible:
incontestable proof.
Origin of incontestable
First recorded in 1665-75; in-3 + contestable
Related forms
incontestability, incontestableness, noun
incontestably, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for incontestable
Contemporary Examples
Historical Examples
  • This is quite another matter; my right of priority is incontestable.

    The Field of Ice Jules Verne
  • But, after all, what incontestable defect in it has any one succeeded in demonstrating?

    The Verbalist Thomas Embly Osmun, (AKA Alfred Ayres)
  • The highest tribute which he pays them is that their loyalty is incontestable.

  • That I take it by my own incontestable right and not of your hand, by your bounty and your charity?

    Tristram of Blent Anthony Hope
  • There it was, malignant and incontestable, the mark of the thing on his brow.

    The House of Pride Jack London
  • But the man's genius is incontestable, his learning enormous.

    Robert Elsmere Mrs. Humphry Ward
  • The Egyptian character of much of this design is incontestable.

    History of Phoenicia George Rawlinson
  • I had been suffering from a hallucination, that was an incontestable fact.

British Dictionary definitions for incontestable


incapable of being contested or disputed
Derived Forms
incontestability, incontestableness, noun
incontestably, 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 incontestable

1670s, from French incontestable, from in- "not" (see in- (1)) + contestable (see contest (v.)). Related: Incontestably.

Online Etymology Dictionary, © 2010 Douglas Harper
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