unretrievable
un·ret·rie·vable
adjective
1.
impossible to recover or recoup or overcome
- “an irretrievable loss”
- “irretrievable errors in judgment”
Origin
From un- + retrievable.
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.