imprudent
adj. 轻率的,鲁莽的;不小心的
例句
It would be imprudent to invest all your money in one company.
把所有的钱都投资在一家公司是不明智的。
《牛津词典》
It was rather imprudent of the little girl to interrupt our conversation like that.
这丫头,打断我们的谈话,没轻没重的。
《新英汉大辞典》
I am afraid he has been very imprudent, and has deserved to lose Mr. Darcy's regard.
我怕他果真是太莽撞,也难怪达西先生不去理睬他。