irrĕpărābĭlis (inr-), adj. [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.
in-reparābilis (irr-) adj., irreparable, irretrievable: tempus, V. ...
An Elementary Latin Dictionary