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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 incontestably
Contemporary Examples
Historical Examples
  • The lamb of pasture-fed animals must be incontestably superior.

    In the Heart of Vosges Matilda Betham-Edwards
  • Being an Englishman, he was incontestably right in doing so.

    My Double Life Sarah Bernhardt
  • These four beings were at this moment, each and all of them, incontestably happy.

    The King's Mirror Anthony Hope
  • The chief illustration of a book is incontestably the formula in which it is summed up.

    The Bird Jules Michelet
  • This stream is incontestably the flumen of the Commentaries.

    History of Julius Caesar Vol. 2 of 2 Napoleon III, Emperor of the French, 1808-1873.
  • His theory of the tendency to movement is incontestably true.

    Mysterious Psychic Forces Camille Flammarion
  • Liszt was incontestably the more artistic, the more vibrant, the more electric.

    Franz Liszt James Huneker
  • But that word he has incontestably the merit of having spoken.

    Anarchism and Socialism

    George Plechanoff
  • This third aristocracy is incontestably the first, if you will excuse the Hibernianism.

British Dictionary definitions for incontestably


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 incontestably



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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