Search Result for "murderousness": 
Wordnet 3.0

NOUN (2)

1. a bloodthirsty hatred arousing murderous impulses;

2. cruelty evidence by a capability to commit murder; 



WordNet (r) 3.0 (2006):

murderousness
    n 1: a bloodthirsty hatred arousing murderous impulses
    2: cruelty evidence by a capability to commit murder