- not able to be revoked, changed, or undone; unalterable
WordReference Random House Learner's Dictionary of American English © 2026
ir•rev•o•ca•ble /ɪˈrɛvəkəbəl/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- that cannot be changed or taken back:an irrevocable commitment to quality.
ir•rev•o•ca•ble
(i rev′ə kə bəl),USA pronunciation adj.
ir•rev′o•ca•bil′i•ty, ir•rev′o•ca•ble•ness, n.
ir•rev′o•ca•bly, adv.
- not to be revoked or recalled;
unable to be repealed or annulled;
unalterable:an irrevocable decree.
- Latin irrevocābilis. See ir-2, revocable
- Middle English 1350–1400
ir•rev′o•ca•bly, adv.
Collins Concise English Dictionary © HarperCollins Publishers::
irrevocable /ɪˈrɛvəkəbəl/ adj
'irrevocable' also found in these entries (note: many are not synonyms or translations):