discourtesy meaning in English

n.
1.无礼貌，失礼 (opp. courtesy)。
2.粗鲁，鲁莽行为。

He was insensitive to all kinds of discourtesy .
他脸皮很厚，对随便什么侮辱都不在乎。
I must apologize for my discourtesy in arriving late
我要为迟到失礼而道歉。
The girl bordered on discourtesy when she replied to the teacher ' s asking
那女孩回答老师的问话时态度近乎粗鲁
During the national civil virtues month , all the cities must clean up , and banish disarray and discourtesy
全国文明礼貌月中,所有城市必须搞好卫生,清除混乱和不礼貌现象