Querulous means complaining or full of complains.
Querulous is an adjective.
Synonyms: captious, disagreeable, cranky, complaining, testy, touchy, quarrelsome, fussy, dissatisfied, faultfinding, finicky, grumbling, grouchy, irascible, peevish, pettish, petulant,sniveling.
Antonyms: uncomplaining, complacent, good-tempered, agreeable.
Adolescence changed our agreeable little boy into a querulous teenager.
Your querulous attitude is having a negative effect on the entire committee.
Querulous Durga never stops complaining and whining.