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[ih-ref-yuh-tuh-buh l, ir-i-fyoo-tuh-buh l] /ɪˈrɛf yə tə bəl, ˌɪr ɪˈfyu tə bəl/
that cannot be refuted or disproved:
irrefutable logic.
1610-20; < Late Latin irrefūtābilis. See ir-2, refutable
Related forms
irrefutability, irrefutableness, noun
irrefutably, adverb
indisputable, incontrovertible, undeniable. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for irrefutable
  • It thrives in a vacuum of consumer information that might give everybody an irrefutable reason to go somewhere else.
  • On the contrary, democracy is logically irrefutable.
  • But each layer is completely established and irrefutable.
  • Having burrowed into the general consciousness, it is well on the way to becoming irrefutable myth.
  • She, it seems to me, is the irrefutable counter to my racist commentators.
  • Few have discovered irrefutable cases of corruption or illegality.
  • Why the climate is changing is almost irrelevant, the fact that it is changing is irrefutable.
  • Litigants and defendants often head to court with a wily lawyer or an irrefutable alibi.
  • Then there is the irrefutable empirical evidence of their value system.
  • Until of course the irrefutable evidence of pain and suffering became too great to ignore.
British Dictionary definitions for irrefutable


/ɪˈrɛfjʊtəbəl; ˌɪrɪˈfjuːtəbəl/
impossible to deny or disprove; incontrovertible
Derived Forms
irrefutability, irrefutableness, noun
irrefutably, 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 irrefutable

1610s, from Latin irrefutabilis "irrefutable," from assimilated form of in- "not, opposite of" (see in- (1)) + refutabilis, from refutare (see refute). Related: Irrefutably; irrefutability.

Online Etymology Dictionary, © 2010 Douglas Harper
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irrefutable in Technology

The opposite of refutable.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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