discontent
discontented
disloyal
insubordinate
alienated
beefing
bellyaching
bitching
breakaway
complaining
complaintful
contumacious
crabbing
crabby
cranky
croaking
defiant
difficult
disaffected
disappointed
disgruntled
disobedient
displeased
disputatious
disputing
dissatisfied
dissentient
dissenting
envious
estranged
extreme
extremistic
factious
faultfinding
fractious
griping
grouchy
grousing
growling
grumbling
incorrigible
insurgent
insurrectionary
malcontent
malcontented
murmuring
mutineering
mutinous
muttering
noncooperative
ambitious
haughty
lawless
perverse
refractory
stubborn
ungrateful
unhappy
unruly
wayward
wicked