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

• accomplished
• certain
• inarguable
• incontestable
• indisputable
• indubitable
• irrefragable
• irrefutable
• positive
• sure
• unanswerable
• unarguable
• unchallengeable
• undeniable
• unquestionable

Examples of incontrovertible in a Sentence

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

Recent Examples on the Web

Not counting them expunges these tournaments from history for no incontrovertible reason. —Will Jeanes, New York Times, 12 Apr. 2025

These sexes are not changeable and are grounded in fundamental and incontrovertible reality. —Paul Du Quenoy, MSNBC Newsweek, 28 Mar. 2025

When senators read from their self-aggrandizing scripts, the resemblance to play actors is incontrovertible. —Sun Sentinel Editorial Board, Sun Sentinel, 20 Jan. 2025

Shareholder activism often comes down to making an incontrovertible argument. —Kenneth Squire, CNBC, 21 Dec. 2024

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