General synonyms:
* Sanguinary: This emphasizes the bloodshed and violence.
* Murderous: This focuses on the intent to kill.
* Savage: This implies brutality and lack of mercy.
* Brutal: This suggests cruelty and physical violence.
* Ruthless: This emphasizes a lack of compassion.
* Vicious: This emphasizes the ferocity and intensity of the violence.
More specific synonyms:
* Predatory: This suggests a desire to hunt and kill.
* Carnivorous: This refers to a desire for flesh, often in a literal sense.
* Warlike: This emphasizes a desire for combat.
* Bellicose: This suggests a love of fighting and war.
* Berserk: This implies a frenzied state of violence.
* Thrill-seeking: This suggests a desire for excitement and danger.
The best word to use will depend on the specific context and the particular shade of meaning you want to convey.