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Synonyms

incontrovertible

American  
[in-kon-truh-vur-tuh-buhl, in-kon-] / ˌɪn kɒn trəˈvɜr tə bəl, ɪnˌkɒn- /

adjective

  1. not controvertible; not open to question or dispute; indisputable.

    absolute and incontrovertible truth.

    Synonyms:
    unquestionable, undeniable, incontestable

incontrovertible British  
/ ˌɪnkɒntrəˈvɜːtəbəl, ɪnˌkɒn- /

adjective

  1. incapable of being contradicted or disputed; undeniable

"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

Other Word Forms

Etymology

Origin of incontrovertible

First recorded in 1640–50; in- 3 + controvertible ( def. )

Explanation

When something is incontrovertible, it is undeniably, absolutely, 100 percent, completely true. That rain is wet is an incontrovertible fact. If you look at incontrovertible, you see that -controver-, as in controversy, is hiding inside. Add in the prefix, and it's easy to see that incontrovertible means there is no controversy about something, or, in other words, it is unchangeable and true. Incontrovertible evidence or proof is what you are looking for if you suspect that someone is doing something wrong.

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Vocabulary lists containing incontrovertible

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"Any time I leave the house, if I am not with a friend or a parent, it costs something – that is an incontrovertible fact of my life," she told the inquiry.

From BBC ● Aug. 12, 2026

In these Straussian terms, Churchill’s greatness was incontrovertible.

From The Wall Street Journal ● Jun. 5, 2026

Start with some incontrovertible rules to live by.

From MarketWatch ● Jan. 9, 2026

And while actors aren’t required to be activists, evading a concrete statement while promoting a film about a woman who has devoted her post-boxing career to social advocacy gives “Christy” and Sweeney an incontrovertible dissonance.

From Salon ● Nov. 8, 2025

Like so many cold, weak people, when faced at last by the incontrovertible disaster she exhumed from somewhere a sort of fortitude, strength.

From "The Sound and the Fury" by William Faulkner

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