ill-natured
unstable
abnormal
anomalous
antagonistic
antipathetic
arbitrary
at cross-purposes
at loggerheads
at odds
at variance
at war
bearish
beefing
bellyaching
bitching
bitchy
breakaway
cankered
cantankerous
capricious
choleric
churlish
clashing
complaining
complaintful
conflicting
contentious
contradicting
contradictory
contrary
counteractant
counteracting
counteractive
countervailing
counterworking
crabbed
crabbing
crabby
crackbrained
cracked
crackers
crank
crankish
crazed
crazy
croaking
cross
cross-grained
crotchety
crankier
crankiest
absent-minded
creepy
despondent
egotistical
glum
hesitant
inefficient
intractable
irate
irritable
morose
paranoid
querulous
secretive
sloppy
spiteful
spooky
surly
suspicious
testy
touchy
unmanageable
Francie
Yankee
hankey
hanky
lanky