undeniable

adjective

un·​de·​ni·​able ˌən-di-ˈnī-ə-bəl 

1

: plainly true : incontestable

an undeniable fact

2

: unquestionably excellent or genuine

an applicant with undeniable references

undeniableness noun

undeniably

ˌən-di-ˈnī-ə-blē 

adverb

Synonyms of undeniable

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

Examples of undeniable in a Sentence

The band's popularity is undeniable.

Recent Examples on the Web

The style’s appeal was undeniable, and many designers followed suit. —Michael Stefanov, Robb Report, 18 May 2026

Choi is an undeniable all-action fighter. —Brian Mazique, Forbes.com, 17 May 2026

While the emotional weight of a mother defending her child is undeniable, supporters of Save Girls’ Sports argue compassion for one athlete should not come at the expense of opportunities for other young women. —Alejandro Avila Outkick, FOXNews.com, 15 May 2026

The soundness of an investment strategy or deal is undeniable as the sun and Mercury align. —Usa Today, USA Today, 14 May 2026

Word History

First Known Use

1547, in the meaning defined at sense 1

Rhymes for undeniable

• liable
• pliable
• triable
• viable
• classifiable
• justifiable
• modifiable
• notifiable
• satisfiable
• specifiable
• unreliable
• verifiable

Kids Definition

undeniable

adjective

un·​de·​ni·​able ˌən-di-ˈnī-ə-bəl 

1

: plainly true : incontestable

2

: positively excellent or genuine

undeniably

-blē 

adverb