Definition of unrefutable in English:

unrefutable

Pronunciation /(ˌ)ʌnrɪˈfjuːtəbl/

adjective

  • Incapable of being refuted or disproved; incontrovertible, irrefutable.

Origin

Late 16th century; earliest use found in Thomas Nashe (d. c1601), writer. From un- + refutable.