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 of irrefutable

• 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

The damage from 39 days of bombing is irrefutable. —Nick Paton Walsh, CNN Money, 15 Apr. 2026

The bottom of the play-in round is its own irrefutable verdict. —Miami Herald, 15 Apr. 2026

Recognition scales when value is irrefutable. —Alex Israel, Fortune, 4 Apr. 2026

Nefarious actors shape elections without leaving irrefutable evidence of ballot manipulation. —Andrew Latham, The Conversation, 3 Mar. 2026

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