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

What was once fixed and irrefutable no longer applied, leaving room for dissonance and inquiry. — Literary Hub, 28 Sep. 2026

There's no objective, irrefutable way to connect the dots today. — Diana Olick, CNBC, 24 Sep. 2026

Reporting on the Holocaust tested Grossman’s attention to character, replacing the gray zone of Soviet morality with irrefutable villains and victims. — Madeleine Wulfahrt, New Yorker, 8 July 2026

Organizations that embed deep, scientific inquiry into their commercial DNA can not only disrupt existing markets but also engineer entirely new ones based on the irrefutable laws of physics. — Alexandra Vidyuk, Forbes.com, 12 June 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