irrevocable

 
Pronunciation: /ɪˈrɛvəkəb(ə)l/

adjective

  • not able to be changed, reversed, or recovered; final: an irrevocable step

Derivatives

irrevocability

Pronunciation: /-ˈbɪlɪti/
noun

irrevocably

adverb

Origin:

late Middle English: from Old French, or from Latin irrevocabilis, from in- 'not' + revocabilis 'able to be revoked' (from the verb revocare)