Synonyms for irrecoverable

Some common synonyms of irrecoverable are: irrecoverable [a.] 1. Irretrievable, lost forever, never to be regained. 2. Irreparable, remediless, irremediable, not to be repaired, that cannot be restored, not to be remedied. 3. Incurable, immedicable, remediless, irremedicable, hopeless, past cure, past hope, past mending.