incontrovertible

adjective

in·​con·​tro·​vert·​ible (ˌ)in-ˌkän-trə-ˈvər-tə-bəl 

: not open to question : indisputable

incontrovertible facts

incontrovertibly

(ˌ)in-ˌkän-trə-ˈvər-tə-blē 

adverb

Did you know?

If something is indisputable, it's incontrovertible. But if it is open to question, is it controvertible? It sure is. The antonyms controvertible and incontrovertible are both derivatives of the verb controvert (meaning "to dispute or oppose by reasoning"), which is itself a spin-off of controversy. And what is the source of all of these controversial terms? The Latin adjective controversus, which literally means "turned against."

Synonyms

• irrefutable
• indisputable
• incontestable
• conclusive
• undeniable
• unquestionable
• indubitable
• unarguable
• irrefragable
• unanswerable
• positive
• unchallengeable
• definite
• inarguable

Examples of incontrovertible in a Sentence

incontrovertible facts that left the jury with no choice but to convict

Recent Examples on the Web

Above all, the film captures the ravages and awe of time, on the actors’ faces and bodies, or on the sun suddenly peaking out above a dawn Mediterranean sea horizon, the real world, manifest in a scene of incontrovertible wonder. —John Hopewell, Variety, 24 Oct. 2025

The Senate’s authority to confirm or deny the president’s nominees is incontrovertible. —James B. Speta, Twin Cities, 16 Sep. 2025

The economic case is incontrovertible. —Priya Oberoi, Forbes.com, 15 Sep. 2025

This time, at least, the decision was incontrovertible by the letter of the law. —Matt Woosnam, New York Times, 18 Aug. 2025

Word History

First Known Use

1646, in the meaning defined above

Rhymes for incontrovertible

• inconvertible
• convertible
• invertible

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Kids Definition

incontrovertible

adjective

in·​con·​tro·​vert·​ible (ˌ)in-ˌkän-trə-ˈvərt-ə-bəl 

: indisputable

incontrovertible evidence

incontrovertibly

-blē 

adverb