irrevokable
ir·re·vo·kable
adjective
1.
impossible to retract or revoke
- “firm and irrevocable is my doom” Shakespeare
Origin
From ir- + revokable.
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.