Found 2 items, similar to irretrievably.
English → English (WordNet) Definition: irretrievably irretrievably adv : in an irretrievable manner; “it is irretrievably lost”
English → English (gcide) Definition: Irretrievably Irretrievably \Ir`re*triev"a*bly\, adv. In an irretrievable manner. [1913 Webster]