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

• 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

That Kathy Bates won an Oscar for her performance as Annie Wilkes in Misery—and that the award remains the only Oscar any Stephen King adaptation has ever won—shows just how undeniable her performance was. —James Grebey, Time, 12 Sep. 2025

For Schultz, the change Kirk brought to campus politics was undeniable. —Samantha-Jo Roth, The Washington Examiner, 12 Sep. 2025

With her sleek hair, popped fan collar, and dark-beauty details, Lopez is also serving some undeniable gothic glam vibes. —Grace McCarty, Glamour, 11 Sep. 2025

Today, with over 200 million protein structures predicted and made public, its impact is undeniable—accelerating everything from mRNA vaccine development to the design of plastic-eating enzymes. —Miguel Llorca, Forbes.com, 10 Sep. 2025

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