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Synonyms

incontestable

American  
[in-kuhn-tes-tuh-buhl] / ˌɪn kənˈtɛs tə bəl /

adjective

  1. incapable of being contested; not open to dispute; incontrovertible.

    incontestable proof.


incontestable British  
/ ˌɪnkənˈtɛstəbəl /

adjective

  1. incapable of being contested or disputed

"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 incontestable

First recorded in 1665–75; in- 3 + contestable ( def. )


Explanation

Something incontestable can't be argued with — it's absolutely true or right. It's an incontestable fact that the earth rotates around the sun. You can't dispute something that's truly incontestable, because it's absolutely clear and unmistakably true. The witness to a car accident could say that it's the incontestable fault of the driver who ran a red light. And once you've signed all the necessary forms and been handed the keys, you're the incontestable owner of your new car. Incontestable adds the "not" prefix, in-, to contestable, "opposable," or "arguable."

Keep Reading on Vocabulary.com

Vocabulary lists containing incontestable

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:

That there was complacency and lack of focus in the bureaucracy is incontestable.

From Salon ● Feb. 28, 2026

“He just had that spirit of being here before and knowing a lot and an incontestable, delusional positivity about everything. I just think that was his gift.”

From Los Angeles Times ● Aug. 15, 2024

But investing their faith in justice has provided hope for those left behind of establishing an incontestable truth - to dispel all the misinformation surrounding the missile attack on the plane.

From BBC ● Jan. 14, 2022

More than ever, moving images — body cameras that monitor police conduct, the video review of athletic event rulings — purport to capture the incontestable truth.

From New York Times ● Aug. 5, 2021

For Aristotle, the ideal science consisted of a chain of logical deductions from incontestable premises.

From "The Invention of Science" by David Wootton

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