2ADJ-GRADED 不得体的;不合宜的;不恰当的 If you describe a person's behaviour or remarks as unbecoming, you mean that they are shocking and unsuitable for that person. 不得体的;不合宜的;不恰当的 [formal]
His conduct was totally unbecoming to an officer in the British armed services. [+ to]
作为一名英军军官,他的行为极不得体。
Those involved had performed acts unbecoming of university students. [+ of]