ferociousness Copy link Outline 1. trŭcŭlentia (rare)2. saevĭtia • ferociousness ; ferocity 1. trŭcŭlentia (rare): Pl. Tac. (who uses the word of climate, Ann. 2, 24). 2. saevĭtia: v. cruelty. (N.B. Not ferocitas, which may have a good sense: cf. Cic. Sen. 10, 33.)