complaining (adj.)
- crabby
- cranky
- disappointed
- discontented
- disgruntled
- displeased
- disputatious
- dissatisfied
- dissentient
- dissenting
- envious
- faultfinding
- fractious
- fretful
- grouchy
- grumbling
- howling
- malcontent
- mournful
- murmuring
- obstructive
- peevish
- petulant
- plaintive
- plangent
- querulous
- rebellious
- recalcitrant
- refractory
- reluctant
- repellent
- resentful
- resistant
- resisting
- resistive
- restive
- restless
- retardant
- sorrowful
- sulky
- unaccommodating
- uncooperative
- uneasy
- unfulfilled
- ungratified
- unhappy
- unsatisfied
- unsubmissive
- unyielding
- wailful
- whiny
