(n.) Savage wildness or fierceness; fury; cruelty; as, ferocity of countenance\.

aggression aggressiveness animality antagonism atrociousness barbarity barbarousness beastliness bellicism bellicosity belligerence belligerency bestiality bloodiness bloodlust bloodthirst bloodthirstiness bloody-mindedness brutality brutalness brutishness cannibalism chauvinism combativeness contentiousness cruelness cruelty ferociousness fiendishness fierceness fight hostility inhumaneness inhumanity jingoism martialism militancy militarism pugnaciousness pugnacity quarrelsomeness ruthlessness saber rattling sadism sadistic cruelty sanguineousness savagery truculence unfriendliness unpeacefulness vandalism viciousness violence wanton cruelty warmongering warpath