Lewis Short
(adjective) : irrĕpărābĭlis (inr-), 2. in-reparabilis
* Irreparable, irrecoverable, irretrievable (poet. and in post-Aug. prose): tempus,Verg. G. 3, 284; id. A. 10, 467: vita,Sen. Ep. 123, 10: fuga temporis,Col. 11, 1, 29.
Charlton T. Lewis, Charles Short, A Latin Dictionary