From Longman Dictionary of Contemporary Englishirrecoverableir‧re‧cov‧er‧a‧ble /ˌɪrɪˈkʌvərəbəl◂/ adjective formal LOSE/NOT HAVE ANYMOREsomething that is irrecoverable is lost or has gone and you cannot get it back irrecoverable loss of sight The insurance premium is wholly irrecoverable.
Examples from the Corpus
irrecoverable• Any advance paid, however, would be irrecoverable.• In this case, however, Jane Austen does not assume that past values are irrecoverable.• There are critical windows of time during which maturation must be achieved; failure of maturation is to some extent irrecoverable.• irrecoverable costs• In the process, many irrecoverable secrets of nature are being lost for ever.• Assuming the past is irrecoverable, the obvious fall-back positions are ethnicity and religion, singly or in combination.• The investment is measured in terms of the irrecoverable time and expenses involved in the learning process.From Longman Business Dictionaryirrecoverableir‧re‧cov‧er‧a‧ble /ˌɪrɪˈkʌvərəbəl◂/ adjective irrecoverable debts or payments cannot or will not be paid backAny advance paid would be irrecoverable. 