Definition of unrevocable in English:

unrevocable

adjective

Scottish
rare
  • Irrevocable.

Origin

Late Middle English. Originally probably from un- + revoke + -able, perhaps after classical Latin irrevocābilis irrevocable; compare slightly later revocable.

Pronunciation

unrevocable

/ʌnˈrɛvəkəb(ə)l/