ambush, assail, assault, bellicose, bludgeon, brandish, browbeat, brutality, carnage, combative, decapitate, ferocious, foment, fusillade, gangster, garrote, harassment, hatred, hector, hostile, immolate, impale, incite, lambast, malevolent, malicious, marauding, massacre, mayhem, melee, menace, oppression, outburst, overthrow, persecute, psychopath, pummel, rampage, ruthless, sadist, savage, thrash, thug, truculent, vicious, virulent