irrefutable

adjective

ir·​re·​fut·​able ˌir-i-ˈfyü-tə-bəl  i-ˈre-fyə-tə- 

ˌi(r)-

: impossible to refute : incontrovertible

irrefutable proof

irrefutability

ˌir-i-ˌfyü-tə-ˈbi-lə-tē 

i-ˌre-fyə-tə-

ˌi(r)-

noun

irrefutably

ˌir-i-ˈfyü-tə-blē 

i-ˈre-fyə-tə-

ˌi(r)-

adverb

Synonyms

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

Examples of irrefutable in a Sentence

There is irrefutable evidence that he committed these crimes.

the irrefutable reply of “Because I like it!”

Recent Examples on the Web

Real-time anomaly detection and irrefutable evidence form the backbone of successful raids, arrests and prosecutions against ORC networks. —Guy Yehiav, Forbes.com, 20 June 2025

But the government data was considered the top, irrefutable, best data there was. —Diana Olick, CNBC, 31 May 2025

Ryan Coogler’s Sinners – a Southern Gothic vampire-musical-period epic led by Michael B. Jordan – is an irrefutable juggernaut. —Kyle Denis, Billboard, 2 May 2025

Soulmates are a foundational idea in our romantic landscapes, but her logic is irrefutable. —Belinda Luscombe, Time, 9 May 2025

Word History

Etymology

Late Latin irrefutabilis, from Latin in- + refutare to refute

First Known Use

1607, in the meaning defined above

Rhymes for irrefutable

• computable
• disputable
• immutable
• imputable
• inscrutable
• unsuitable
• executable
• indisputable
• substitutable
• mutable
• suitable

Kids Definition

irrefutable

adjective

ir·​re·​fut·​able ˌir-i-ˈfyüt-ə-bəl  (ˈ)ir-ˈ(r)ef-yət- 

: not capable of being proved wrong : indisputable

irrefutable proof

irrefutably

-blē 

adverb