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

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

Examples of unquestionable in a Sentence

a person of unquestionable integrity

His influence on modern art is unquestionable.

Recent Examples on the Web

The authority of its government was unchallenged; its power to win amazing response to its demands was unquestionable. —Foreign Affairs, 18 Dec. 2011

But for the near term, its sports TV supremacy is unquestionable. —Rick Porter, The Hollywood Reporter, 2 July 2024

For decades, firework displays have been an unquestionable part of the Fourth of July. —Stephanie Lam, The Mercury News, 2 July 2024

For instance, Chinese policy experts’ conviction that China has an unquestionable legal right to use force against Taiwan is a crucial element underlying the leadership and general public’s thinking on coercive unification. —Tong Zhao, Foreign Affairs, 9 May 2023

Word History

First Known Use

1587, in the meaning defined above

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