implacable
a hog for
acquisitive
all-devouring
avaricious
avenging
avid
bottomless
coveting
covetous
deadly
devouring
esurient
gluttonous
gobbling
grabby
grasping
greedy
grudgeful
hoggish
inappeasable
inexpiable
insatiable
insatiate
irreconcilable
limitless
mercenary
merciless
miserly
money-hungry
money-mad
mortal
omnivorous
overgreedy
piggish
punitive
punitory
quenchless
rancorous
rapacious
ravening
ravenous
relentless
retaliatory
revanchist
revengeful
ruthless
slakeless
all-consuming
all-engrossing
blood-sprinkled
causeless
crossbred
direst
inextinguishable
inordinate
insensate
mulish
pent-up
slaughterous
unappeased
undiluted
undying
ungovernable
unmovable
unquenchable
unrelenting
unsated
unsatisfied
compassionate