not knowing how to be polite and pleasant to other people 不懂礼貌的；粗鲁的；无礼的 a graceless, angry young man 一个粗鲁、愤怒的年轻男子
not pleasant or attractive to look at 不优美的；不雅致的；难看的 the graceless architecture of the 1960s 20 世纪 60 年代的丑陋建筑
moving in a way that is not smooth, attractive or easy 笨拙的