complaining β to express dissatisfaction, pain, uneasiness, censure, resentment, or grief; find fault: He complained constantly about the noise in the corridor.
disparaging β that disparages; tending to belittle or bring reproach upon: a disparaging remark.
griping β Informal. to complain naggingly or constantly; grumble.
grousing β to grumble; complain: I've never met anyone who grouses so much about his work.
grumbling β to murmur or mutter in discontent; complain sullenly.
moaning β a prolonged, low, inarticulate sound uttered from or as if from physical or mental suffering.
nagging β continually faultfinding, complaining, or petulant: a nagging parent.
niggling β petty; trivial; inconsequential: to quibble about a niggling difference in terminology.
quibbling β characterized by or consisting of quibbles; carping; niggling: quibbling debates.
whining β to utter a low, usually nasal, complaining cry or sound, as from uneasiness, discontent, peevishness, etc.: The puppies were whining from hunger.
censorious β If you describe someone as censorious, you do not like the way they strongly disapprove of and criticize someone else's behaviour.
critical β If a person is critical or in a critical condition in hospital, they are seriously ill.
scathing β bitterly severe, as a remark: a scathing review of the play.
dissatisfied β not satisfied or pleased; discontented.
unhappy β sad; miserable; wretched: Why is she so unhappy?
blue β Something that is blue is the colour of the sky on a sunny day.
crabby β Someone who is crabby is bad-tempered and unpleasant to people.
disaffected β discontented and disloyal, as toward the government or toward authority.
disgruntled β displeased and discontented; sulky; peevish: Her disgruntled husband refused to join us.
displeased β to incur the dissatisfaction, dislike, or disapproval of; offend; annoy: His reply displeased the judge.
disquieted β lack of calm, peace, or ease; anxiety; uneasiness.
disturbed β marked by symptoms of mental illness: a disturbed personality.
exasperated β Simple past tense and past participle of exasperate.
fed up β simple past tense and past participle of feed.
fretful β disposed or quick to fret; irritable or peevish.
malcontent β not satisfied or content with currently prevailing conditions or circumstances.
miserable β wretchedly unhappy, uneasy, or uncomfortable: miserable victims of war.
perturbed β to disturb or disquiet greatly in mind; agitate.
picky β extremely fussy or finicky, usually over trifles.
restless β characterized by or showing inability to remain at rest: a restless mood.
ungratified β to give pleasure to (a person or persons) by satisfying desires or humoring inclinations or feelings: Her praise will gratify all who worked so hard to earn it.
upset β to overturn: to upset a pitcher of milk.
vexed β irritated; annoyed: vexed at the slow salesclerks.
annoyed β If you are annoyed, you are fairly angry about something.