adj.沖動的；猛烈的；輕率的

He is an impetuous young man. 他是個易沖動的年輕人。

She regretted her impetuous decision. 她后悔自己做了沖動的決定。

It was impetuous of her to do that. 她竟做那種事,真是魯莽。

Youngsters are usually more impetuous than old people. 年輕人常比老年人急躁。

It would be foolish and impetuous to resign over such a trivial matter. 為這樣的小事辭職未免愚蠢而輕率。

n.激烈(迅疾；沖動；急躁)