n.不适当；不正确；用词错误；不得体
He waved off suggestions of impropriety. 他撤消了不适当的建议。
The investigation revealed no impropriety. 调查表明没有不正当的做法.
Impropriety is the soul of wit. 用词不当是打趣话的精髓。
I was surprised by the impropriety of his remarks. 他的话不得体,我听了很诧异。
