discourtesy

n.无礼

无礼；失礼的行为或言语。

名词

1、She was offended by his discourtesy and lack of respect.
她对他的无礼和缺乏尊重感到冒犯。
2、It is considered a discourtesy to talk on your phone during a movie.
在电影放映期间用手机聊天被视为一种失礼行为。