indubitable

American  

[in-doo-bi-tuh-buhl, -dyoo-] / ɪnˈdu bɪ tə bəl, -ˈdyu- /

adjective

1. that cannot be doubted; patently evident or certain; unquestionable.

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indubitable British  

/ ɪnˈdjuːbɪtəbəl /

adjective

1. incapable of being doubted; unquestionable

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Related Words

See doubtless.

Other Word Forms

• indubitability noun
• indubitableness noun
• indubitably adverb

Etymology

Origin of indubitable

From the Latin word indubitābilis, dating back to 1615–25. See in- ³, dubitable

Explanation

Indubitable is a really fancy — five syllable, no less — way of saying "utterly obvious," or "clear beyond a doubt." Indubitably is very closely related to undoubtedly, and has essentially the same meaning. But if you want to throw in a certain educated, old-school touch to your vocabulary, go with indubitably instead. You'll sound smarter. After all, if it was good enough for Sherlock Holmes, it's good enough for you — "Indubitably, my dear Watson..." was his frequent preface to his less-quick-on-the-uptake sidekick.

Example Sentences

"It is indubitable that the impact of climate change will increasingly prejudice the lives and families of many persons."

From Reuters • Oct. 5, 2023

In the 15 years that followed her country music debut, Swift has fully metamorphosed from Nashville darling into indubitable Queen of Pop.

From Los Angeles Times • Nov. 15, 2022

But, he continued, "it's indubitable that the party line I have passively received over the decades simply does not comport with reality."

From Salon • Feb. 22, 2022

In short, the simplest, easiest, obvious and now all but indubitable answer is that Jefferson was the father.

From Washington Post • Jun. 12, 2018

The topic of the discussion is how we struggle to reconcile the indubitable fact of death with our incomprehension of the possibility that a person can no longer exist.

From "The Sense of Style" by Steven Pinker