irredeemable adjective ir???re???deem???a???ble1 formal too bad to be corrected, repaired, or saved: Very few children are irredeemable.2 technicalBFS irredeemable bonds pay interest to the person who is lending money but do not have a set date saying when the money being lent must be paid back ???irredeemably adverb Definition of irredeemable from the Longman Dictionary of Contemporary English wi