critical
acerb
acerbate
acerbic
acid
acidic
acidulent
acidulous
acrid
acrimonious
astringent
biting
bitter
brutal
burning
caustic
corroding
corrosive
cutting
damaging
double-edged
edged
escharotic
ferocious
fierce
harmful
harsh
incisive
keen
mordacious
mordant
nasty
penetrating
piercing
poignant
rigorous
rough
salty
savage
scorching
searing
severe
sharp
stabbing
stern
stinging
strident
stringent
tart
trenchant
vehement
devastate
disdainful
flippant
good-humored
indignant
ironical
satirical
scornful
scurrilous
snide
spiteful
unfriendly
unsparing
venomous
virulent
witty
bathing