(especially of clothing or a colour) not flattering (尤指衣服,颜色)不合式的;难看的 a stout lady in an unbecoming striped sundress. 穿难看条纹太阳裙的胖女人。 ■(of a person's attitude or behaviour) not fitting or appropriate; unseemly (态度,行为)不合适的;不得体的;不合礼节的 it was unbecoming for a university to do anything so crass as advertising its wares. 大学蠢到用广告推销自己真不得体。