SYN: Malcontent, dissatisfied, opposititious, litigious.
ANT: Contented, satisfied, complacent, amenable, conformable.
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KEY: Querulous.
SYN: Quarrelsome, complaining, fretful, repining, discontented, dissatisfied, chiding, murmuring, whining, peevish, fastidious, irritable.
ANT: Easy, uncomplaining, satisfied, contented, submissive, genial, complacent, cheerful, good-tempered.
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KEY: Query.
SYN: Question, interrogation, inquiry.
ANT: Answer.