peevish

This term describes a specific kind of irritability that is petty and disproportionate to the cause. It suggests a mood of childishness or fragility, where the person is easily vexed by trivialities rather than deep-seated anger or legitimate grievance. In social contexts, it carries a negative connotation of being difficult or unpleasant to be around. It differs from "angry" by implying a whining or fretful quality, often associated with exhaustion, illness, or a spoiled temperament.