居ㄐㄩjū功ㄍㄨㄥgōng自ㄗˋzì傲ㄠˋào

  1. 憑藉著自己的功勞而自高自大。如：「一個謙和自守的人，絕不居功自傲。」反功成不居

英satisfied with one's accomplishment and arrogant as a result (idiom)​; resting on one's laurels and despising others