murderous (adj.)
- animal
- anthropophagous
- arduous
- atrocious
- barbaric
- barbarous
- beastly
- bestial
- bloodthirsty
- bloody
- bloody-minded
- brutal
- brute
- brutish
- cannibalistic
- cruel
- cutthroat
- deadly
- deathly
- demoniac
- demoniacal
- destructive
- devastating
- devilish
- diabolic
- difficult
- exhausting
- fatal
- fell
- feral
- ferine
- ferocious
- fiendish
- fierce
- gory
- harrowing
- hellish
- homicidal
- infernal
- inhuman
- inhumane
- intolerable
- killing
- lethal
- malign
- malignant
- merciless
- mortal
- noncivilized
- pitiless
- red-handed
- rigorous
- ruinous
- ruthless
- sadistic
- sanguinary
- sanguine
- sanguineous
- satanic
- savage
- self-destructive
- slaughterous
- strenuous
- stressful
- subhuman
- suicidal
- truculent
- unbearable
- unchristian
- uncivilized
- ungentle
- unhuman
- untamed
- vicious
- wild
- wolfish
