Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
in-crŭentus, a, um, adj., bloodless, that sheds no blood, without bloodshed (freq. in the histt., but not in Cic. or Cæs.): certatum haud incruento proelio foret, ni, etc., Liv. 2, 56, 15: victoria, Sall. C. 61, 7; Liv. 4, 17, 8; 7, 8 fin.; 21, 29, 4; 7, 8, 7: miles, id. 8, 29, 12: Darium incruentus devicit, id. 9, 17, 16: exercitus, in which no blood has been shed, that has not lost any men, Sall. J. 92, 4; Tac. H. 4, 37: incruentam urbem intrare, without shedding of blood, id. ib. 3, 66; Amm. 14, 10, 14.
Hence, * adv.: incrŭ-entē, without bloodshed: vivere, Prud. στεφ. 10, 1094.