malcontent (n.)
- agitator
- anarchist
- bellyacher
- brawler
- complainant
- complainer
- crab
- crank
- croaker
- croaking
- discontent
- extremist
- faultfinder
- faultfinding
- griever
- griping
- grouch
- growler
- growling
- grumbler
- grumbling
- insurgent
- insurrectionist
- kicker
- killjoy
- kvetch
- lamenter
- maverick
- mourner
- murmurer
- murmuring
- mutineer
- mutterer
- muttering
- nonconformist
- reactionary
- rebel
- revolutionary
- revolutionist
- rioter
- sorehead
- sourpuss
- spoilsport
- subversive
- sulky
- traitor
- whiner
malcontent (adj.)
- alienated
- complaining
- contumacious
- crabby
- crank
- cranky
- disaffected
- disappointed
- discontent
- discontented
- disgruntled
- disobedient
- displeased
- dissatisfied
- envious
- estranged
- extremist
- factious
- faultfinding
- grouchy
- grumbling
- insubordinate
- insurgent
- insurrectionary
- maverick
- murmuring
- nonconformist
- peevish
- petulant
- querulous
- reactionary
- reactionist
- rebellious
- resentful
- restive
- restless
- revolutionary
- seditious
- subversive
- sulky
- unaccommodating
- uneasy
- unfulfilled
- ungovernable
- ungratified
- unhappy
- unruly
- unsatisfied
- whiny
