resentful
acerb
acerbate
acerbic
acid
acidic
acidulent
acidulous
acrid
astringent
belligerent
biting
bitter
burning
caustic
choleric
contentious
corroding
corrosive
cranky
cross
cutting
double-edged
edged
embittered
escharotic
fierce
harsh
incisive
indignant
irascible
irate
ireful
keen
mad
mordacious
mordant
penetrating
piercing
poignant
quarrelsome
rancorous
rankled
resenting
rigorous
rough
amicable
censorious
divisive
factional
fractious
fretful
long-running
pointless
polemical
scathing
splenetic
testy
trenchant
unfriendly
virulent
wordy
Antonius
erroneous
felonious
harmonious
parsimonious
sanctimonious
unceremonious