Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
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.