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

• accomplished
• certain
• inarguable
• incontestable
• incontrovertible
• indisputable
• indubitable
• irrefragable
• positive
• sure
• unanswerable
• unarguable
• unchallengeable
• undeniable
• unquestionable

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

Faced with this irrefutable fact, there are two options: to understand aging as just another stage of life with its consequent physical and mental changes, or to deny it. —Laura Solla, Vogue, 1 Jan. 2025

If irrefutable evidence of Russian malfeasance is found, NATO will have moved another step closer to confronting its adversary. —Sarah Dean, CNN, 27 Jan. 2025

Hence, the population loss was bandied about Red America as irrefutable evidence of the blue state’s social collapse, its moral rot and the failings of its left-leaning political leadership. —Mark Z. Barabak, The Mercury News, 21 Jan. 2025

That seems like an obvious assertion and nearly irrefutable. —Lance Eliot, Forbes, 10 Jan. 2025

Word History

Etymology

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

First Known Use

1607, in the meaning defined above

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