Complain is an action that involves expressing dissatisfaction or annoyance about something. It can be done in various ways, such as crossly, crustily, gripingly, whinily, beefing, and fretfully. CROSS is a five-letter word that means to express displeasure or disagreement with something. CRUSTY is a six-letter word that means irritable or bad-tempered. Gripy is a five-letter word that means to complain or grumble. WHINY is a five-letter word that means to complain in a high-pitched, whining voice. Beefing is a seven-letter word that means to complain or protest loudly. FRETFUL is a seven-letter word that means full of worry or anxiety. Gripping is a seven-letter word that means to complain or protest persistently. All of these words describe different ways of expressing dissatisfaction or annoyance.