1. It was impetuous of her to do that.
    她竟做那种事，真是鲁莽。

2. Youngsters are usually more impetuous than old people.
    年轻人常比老年人急躁。

3. The dam broke and an impetuous torrent of water swept away the town.
    堤坝崩塌了，奔腾的急流冲垮了镇子。

1. 冲动,猛烈的：imperil 危及,使陷於危机 | impetuous 冲动,猛烈的 | impetus 原动力,冲力,刺激

2. danci.911cha.com

2. 冲动的;鲁莽的：impetus 推动力, 促进 | impetuous 冲动的;鲁莽的 | viaduct 高架桥, 高架铁路, 间道

3. 冲动的：impetuosity 激烈 | impetuous 冲动的 | impetuously 激烈地

1. 急躁的;冲动的
    If you describe someone as impetuous, you mean that they are likely to act quickly and suddenly without thinking or being careful.

    e.g. He was young and impetuous...
           他年轻,易于冲动。
    e.g. He tended to react in a heated and impetuous way.
           他往往反应过火,急躁冲动。

1. characterized by undue haste and lack of thought or deliberation
    (`brainish'' is archaic)

    e.g. a hotheaded decision
           liable to such impulsive acts as hugging strangers
           an impetuous display of spending and gambling
           madcap escapades

    Synonym: hotheadedimpulsivemadcaptearaway(a)brainish

2. marked by violent force

    e.g. impetuous heaving waves