adjective
irrefutable
ir-ih-FYOO-tuh-bul/ˌɪrɪˈfjuːtəbl/
Impossible to disprove or convincingly argue against.
The paint-covered hand against the fresh mark provides irrefutable evidence of contact.

Etymology
Refutare meant both driving back and disproving: an argument could repel or overthrow a claim. Irrefutable describes a claim that cannot be defeated in this way; the use of refute for merely denying came later.
In context
But the burden of evidence was overwhelming. Countless former inmates reported numerous crimes committed by Greese, providing irrefutable evidence of her ice-cold and sadistic side.
More examples
- She presented an irrefutable argument.
- The documented dates seemed irrefutable.
- He could not ignore the irrefutable proof.
Forms
irrefutable
refute verb — disprove through evidence or argument
Similar words
- indisputable
- Indisputable cannot reasonably be challenged; irrefutable particularly means unable to be disproved by argument or evidence.
- conclusive
- Conclusive settles a matter; irrefutable describes the strength against attempted rebuttal.