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

Ongoing party rectification campaigns require all officials to discipline themselves, and the occasional outright purge of some cadres provides undeniable proof that failure to comply has consequences. — Andrew Mertha, Foreign Affairs, 17 Sep. 2026

The pride comes from the undeniable influence that Native American ideas and principles of governance had on the Founding Fathers. — Scott Baldauf, Christian Science Monitor, 17 Sep. 2026

Satellite data later showed that houses in the predominantly Rohingya neighborhood were burned down by the Myanmar military during the atrocity, providing undeniable proof that the ethnic minority was targeted. — Tereza Pultarova, Space.com, 15 Sep. 2026

Understand The Workforce’s Future Capabilities To prepare for a future board seat, HR executives should have an undeniable understanding of the current, short- and long-term capabilities of the workforce. — Expert Panel®, Forbes.com, 15 Sep. 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