acrimonious
bitter
rancorous
acerb
acerbate
acerbic
acid
acidic
acidulent
acidulous
aggravated
agitated
angry
annoyed
antagonistic
beefing
begrudging
bellyaching
bitching
bothered
browned-off
bugged
burning
burnt-up
catty
caustic
chafed
choleric
complaining
complaintful
crabbing
crabby
cranky
croaking
disappointed
discontented
disgruntled
displeased
dissatisfied
disturbed
embittered
envious
exasperated
faultfinding
fretful
furious
galled
griped
griping
grouchy
grousing
resentment
apprehensive
contemptuous
disapprove
disdainful
exasperate
incredulous
irritable
morose
reproachful
revengeful
sullen
suspicious
uneasy
vindictive
wrathful
eventful
uneventful