Lewis & Short

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

făcĭnŏrōsus (facinĕrosus), a, um, adj. [facinus], criminal, villainous, atrocious, vicious (rare but class.): quintum genus est parricidarum, sicariorum, denique omnium facinorosorum, Cic. Cat. 2, 10, 22; id. Cael. 6, 13; id. de Or. 2, 58, 237; id. Rep. 3, 17: injuriosa facinorosaque vita, id. Leg. 1, 14, 40: impius et facinorosus animus, Just. 24, 2, 1.
Comp.: facinorosior, id. 16, 4.
Sup.: facinorosissimi sicarii, Cic. Sest. 38, 81; Vulg. 2 Macc. 8, 34.
Adv.: făcĭ-nŏrōse, viciously, scandalously, August. Inn. 76, 1; id. cont. Sec. Resp. Jul. 5, 64.