Try Our Apps


The Best Internet Slang


[ih-ref-yuh-tuh-buh l, ir-i-fyoo-tuh-buh l] /ɪˈrɛf yə tə bəl, ˌɪr ɪˈfyu tə bəl/
not capable of being refuted or disproved:
irrefutable logic.
Origin of irrefutable
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. 2017.
Cite This Source
Examples from the Web for irrefutable
Contemporary Examples
Historical Examples
  • And that cannot be denied; the certificates are there, irrefutable.

  • The scientific mind must have proof, undeniable, irrefutable proof.

    The Golden Woman Ridgwell Cullum
  • To this logic, which was irrefutable, poor Encisco could make no reply.

    South American Fights and Fighters

    Cyrus Townsend Brady
  • The thing existed in his mind, not as a picture, but as a piece of irrefutable evidence.

    Five Tales John Galsworthy
  • Such is the proof we look upon as irrefutable, as complete and perfect.

    Reincarnation Th. Pascal
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
Cite This Source
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
Cite This Source

Word of the Day

Difficulty index for irrefutable

Some English speakers likely know this word

Word Value for irrefutable

Scrabble Words With Friends

Nearby words for irrefutable