cancerous
acrid
allergic
anemic
antagonistic
antipathetic
apoplectic
arthritic
atrocious
baleful
baneful
barbaric
barbarous
belligerent
bestial
bilious
bitchy
bitter
bloody
brutal
brutish
catching
caustic
chlorotic
clashing
colicky
colliding
communicable
conflicting
consumptive
contagious
corroding
corrosive
corrupting
corruptive
counterproductive
cussed
damaging
deadly
death-bringing
deathful
deathly
deleterious
despiteful
destructive
detrimental
devilish
diabolical
disadvantageous
disserviceable
nonmalignant
hateful
implacable
inhuman
malevolent
malicious
selfish
sinister
spiteful
stupid
treacherous
vile
vindictive
wicked
indignant
benign