improper
adj. 不正确的，错误的；不适当的；不合礼仪的
例句
It would be improper to comment at this stage.
在这个阶段发表评论并不恰当。
《牛津词典》
Its image has been sullied by $9 billion in improper accounting.
其形象被90亿的假账所毁。
《柯林斯英汉双解大词典》
The improper use of medicine could lead to severe adverse reactions.
用药不当会引起严重的不良反应。
