sanguinary (adj.)
- aggressive
- animal
- antagonistic
- anthropophagous
- atrocious
- barbaric
- barbarous
- beastly
- bellicose
- belligerent
- bestial
- bloodstained
- bloodthirsty
- bloody
- bloody-minded
- brutal
- brute
- brutish
- cannibalistic
- chauvinistic
- combative
- contentious
- cruel
- cutthroat
- demoniac
- demoniacal
- devilish
- diabolic
- fell
- feral
- ferine
- ferocious
- fiendish
- fierce
- fighting
- gory
- grim
- hawkish
- heartless
- hellish
- homicidal
- hostile
- infernal
- inhuman
- inhumane
- inimical
- jingoistic
- malign
- malignant
- martial
- merciless
- militant
- militaristic
- military
- murderous
- noncivilized
- offensive
- pitiless
- pugnacious
- quarrelsome
- red-handed
- remorseless
- ruthless
- sadistic
- sanguine
- sanguineous
- satanic
- savage
- scrappy
- self-destructive
- slaughterous
- soldierlike
- soldierly
- subhuman
- suicidal
- trigger-happy
- truculent
- unchristian
- uncivilized
- unfriendly
- ungentle
- unhuman
- unpeaceable
- unpeaceful
- untamed
- vicious
- warlike
- warring
- wild
- wolfish
