caustic soda
destructive
unpleasant
Rabelaisian
acerb
acerbate
acerbic
acid
acidic
acidulent
acidulous
acrid
acrimonious
actual cautery
acute
amaroidal
angry
antagonistic
antipathetic
arc
asperous
astringent
belligerent
biting
bitter
bitter as gall
bow
brand
brand iron
branding iron
brisk
burning
catacaustic
catenary
cauter
cauterant
cauterizer
cautery
choleric
circle
clashing
coarse
colliding
conchoid
conflicting
corroding
corrosive
crisp
critical
crook
disdainful
flippant
good-humored
incisive
playful
pungent
sarcastic
sardonic
satirical
scathing
sly
sour
terse
trenchant
volatile
agnostic
diagnostic