triumphant look; proud face
Describes a facial expression showing pride or satisfaction, often after a success or when feeling superior.
He got a perfect score on the test and showed a triumphant look.
My younger sister stood there with a proud look, wearing her new dress.
Compound of 得意 (とくい, 'pride; satisfaction') and 顔 (かお, 'face'). The reading がお is a rendaku form of かお.