na-adjective
dissatisfied-looking; discontented
Describes a facial expression or manner that shows dissatisfaction or discontent. Often used with ~な顔, ~な様子, or as an adverb 不満げに.
彼は不満げな顔で黙っていた。
He stayed silent with a dissatisfied look on his face.
子供たちは不満げに文句を言った。
The children complained discontentedly.
Compound of 不満 (dissatisfaction) + げ (suffix indicating appearance or manner). The suffix げ derives from classical Japanese 気 (け), meaning 'sign' or 'appearance'.