bad
cankered
carious
contaminated
corrupt
decayed
decomposed
diseased
festering
foul
gangrenous
gone bad
infected
morbid
mortified
necrosed
necrotic
pathological
peccant
poisoned
putrefied
putrescent
putrid
rotten
rotting
septic
sphacelated
spoiled
suppurating
suppurative
tainted
ulcerated
ulcerous