Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
rĕvŏcābĭlis, e, adj. [revoco], that may be recalled or revoked, revocable (mostly poet.): poenae leves et revocabiles, Sen. Ira, 1, 5, 6.
Hence, with a negative, for irrevocable: colus Parcarum, Sen. Herc. Fur. 559: telum, Ov. M. 6, 264: carmen fatorum, Prop. 4 (5), 7, 51: aliquis (sc. mortuus), Albin. 1, 427: damnum, Claud. in Eutr. 2, 488: non revocabile verum, Stat. Th. 1, 291.