insane
Draconian
Mephistophelian
Tartarean
abandoned
amok
animal
anthropophagous
atrocious
barbaric
barbarous
beastly
bellowing
berserk
bestial
bloodthirsty
bloody
bloody-minded
brutal
brutalized
brute
brutish
cannibalistic
carried away
cruel
cruel-hearted
cursed
damnable
delirious
demoniac
demonic
demonish
demonlike
devil-like
devilish
diabolic
distracted
ecstatic
enraptured
execrable
fell
feral
ferocious
fiendish
fiendlike
fierce
frantic
frenzied
fulminating
furious
ghoulish
archangelic
derisive
exultant
gleeful
half-hysterical
half-suppressed
ill-concealed
ill-suppressed
irrepressible
malevolent
maniacal
satanic
unbridled
uncontrollable
ungoverned
unholy
uproarious