ill-natured
sensitive
aggressive
agitable
all nerves
allergic
anaphylactic
apprehensive
bad-tempered
bearish
bellicose
belligerent
bickering
bitchy
cankered
cantankerous
choleric
churlish
combative
crabbed
crabby
cranky
cross
cross-grained
crotchety
crusty
cussed
delicate
disagreeable
disputatious
divisive
dyspeptic
edgy
emotional
emotionally unstable
empathetic
empathic
eristic
eruptive
excitable
explosive
factional
factious
fearful
feisty
fractious
fretful
frightened
goosy
grouchy
irritation
discontented
haughty
impatient
irascible
jealous
morose
petulant
quarrelsome
resentful
restless
surly
uneasy
vindictive