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

Even so, by 2018, the fraud in New Orleans had grown so undeniable that the trucking companies and their lawyers could no longer ignore it. —Patrick Radden Keefe, New Yorker, 13 Apr. 2026

With an appearance from Billy Corgan, his pop-turned-raging rock set made an undeniable case for a future headlining set. —Althea Legaspi, Rolling Stone, 13 Apr. 2026

While Huston’s original vision has never seen the light of day, this iteration is still an undeniable piece of Huston’s ouevré. —Declan Gallagher, Entertainment Weekly, 11 Apr. 2026

But the doctor who once told him a lung transplant was his only option was now reaching out with other news – and his energy was undeniable. —Courtney Crowder, USA Today, 10 Apr. 2026

Word History

First Known Use

1547, in the meaning defined at sense 1

Rhymes for undeniable

• leviable
• reliable
• classifiable
• justifiable
• modifiable
• notifiable
• satisfiable
• specifiable
• unreliable
• verifiable
• emulsifiable
• identifiable

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