unquestionable

adjective

un·​ques·​tion·​able ˌən-ˈkwes-chə-nə-bəl 

-ˈkwesh-

: not questionable : indisputable

unquestionable evidence

unquestionable integrity

unquestionably

ˌən-ˈkwes-chə-nə-blē 

-ˈkwesh-

adverb

Synonyms of unquestionable

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

Examples of unquestionable in a Sentence

a person of unquestionable integrity

His influence on modern art is unquestionable.

Recent Examples on the Web

That was the unquestionable trend that emerged from Milan Fashion Week for spring 2027, and retailers could not get enough of them, praising Prada‘s offer that focused on the singular garment and its versatility. — Samantha Conti, Footwear News, 28 Sep. 2026

Collins made up for his lack of money by courting attention with relentless broadsides against the race’s unquestionable front-runner. — Michael Van Sickler, Sun Sentinel, 23 Sep. 2026

Arca — a nonbinary trans woman who makes uncategorizable music and embodies unquestionable glamour — anchors her divahood in a mutation of body, soul and sound. — Los Angeles Times, 15 Sep. 2026

There are unquestionable truths about the 19-year-old Hagens. — Fluto Shinzawa, New York Times, 11 Sep. 2026

Word History

First Known Use

1587, in the meaning defined above

Rhymes for unquestionable

• questionable

Kids Definition

unquestionable

adjective

un·​ques·​tion·​able ˌən-ˈkwəs-chə-nə-bəl 

-ˈkwesh-

in rapid speech -ˈkwesh-nə-;

ˈən-

: not questionable : indisputable

unquestionable evidence

unquestionably

-blē 

adverb