in·​du·​bi·​ta·​ble | \(ˌ)in-ˈdü-bə-tə-bəl, -ˈdyü-\

Definition of indubitable 

: too evident to be doubted : unquestionable

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Other Words from indubitable

indubitability \ (ˌ)in-​ˌdü-​bə-​tə-​ˈbi-​lə-​tē , -​ˌdyü-​ \ noun
indubitableness \ (ˌ)in-​ˈdü-​bə-​tə-​bəl-​nəs , -​ˈdyü-​ \ noun
indubitably \ (ˌ)in-​ˈdü-​bə-​tə-​blē , -​ˈdyü-​ \ adverb

Did You Know?

There's no reason to question the fairly straightforward etymology of indubitable - a word that has remained true to its Latin roots. It arrived in Middle English in the 15th century from Latin indubitabilis, itself a combination of "in-" ("not") and "dubitabilis" ("open to doubt or question"). "Dubitabilis" is from the verb dubitare, meaning "to doubt," which also gave us our "doubt." The word dubitable also exists in English, and of course means "questionable or doubtable," but it is fairly rare.

Examples of indubitable in a Sentence

the indubitable fact that there are no more woolly mammoths or saber-toothed tigers around

Recent Examples on the Web

Her character, Belle, feisty and tender, arrives late to the story but makes an indubitable impact. Hamish Bowles, Vogue, "Tony Award winning Cynthia Erivo on Taking the Leap from Stage to Screen," 17 Oct. 2018 Maybe the result was not a reflection of English weaknesses at all, but of indubitable West German superiority., "World Cup Countdown: 3 Days to Go - What if Gordon Banks Hadn’t Fallen Ill Before the Quarter Final?," 11 June 2018 According to Mario Zagallo, such a seamless transition to life without Pele was indubitable., "World Cup Countdown: 14 Weeks to Go - Brazil's Astounding Performance in the 1962 Final," 16 Mar. 2018 In a media landscape that’s increasingly allergic to nuance, Trump’s favorite judge thrives by purveying the gut satisfactions of indubitable belief. Katy Waldman, Slate Magazine, "Fox News’ Jeanine Pirro embodies a kindergartener’s idea of justice. No wonder the president loves her.," 15 Dec. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'indubitable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of indubitable

15th century, in the meaning defined above

History and Etymology for indubitable

Middle English indubitabyll, from Latin indubitabilis, from in- + dubitabilis dubitable

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Last Updated

14 Nov 2018

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The first known use of indubitable was in the 15th century

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English Language Learners Definition of indubitable

: certainly true : not able to be doubted


in·​du·​bi·​ta·​ble | \in-ˈdü-bə-tə-bəl, -ˈdyü-\

Kids Definition of indubitable

: being beyond question or doubt

Other Words from indubitable

indubitably \ -​blē \ adverb

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More from Merriam-Webster on indubitable

Thesaurus: All synonyms and antonyms for indubitable

Spanish Central: Translation of indubitable

Nglish: Translation of indubitable for Spanish Speakers

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