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impetuous

American  
[im-pech-oo-uhs] / ɪmˈpɛtʃ u əs /

adjective

  1. of, relating to, or characterized by sudden or rash action, emotion, etc.; impulsive.

    an impetuous decision; an impetuous person.

    Synonyms:
    headlong, eager
    Antonyms:
    careful, planned
  2. having great impetus; moving with great force; violent.

    the impetuous winds.


impetuous British  
/ ɪmˈpɛtjʊəs, ɪmˌpɛtjʊˈɒsɪtɪ /

adjective

  1. liable to act without consideration; rash; impulsive

  2. resulting from or characterized by rashness or haste

  3. poetic moving with great force or violence; rushing

    the impetuous stream hurtled down the valley

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

Impetuous, impulsive both refer to persons who are hasty and precipitate in action, or to actions not preceded by thought. Impetuous suggests eagerness, violence, rashness: impetuous vivacity; impetuous desire; impetuous words. Impulsive emphasizes spontaneity and lack of reflection: an impulsive act of generosity.

Other Word Forms

Etymology

Origin of impetuous

First recorded in 1350–1400; Middle English, from Anglo-French, from Late Latin impetuōsus, equivalent to Latin impetu(s) “an attack” + -ōsus adjective suffix; see origin at impetus, -ous

Explanation

Someone impetuous acts too hastily or carelessly. Hotheaded, impulsive folks are impetuous. If you're a careful person who thinks everything through and doesn't act rashly, then you're not very impetuous. Impetuous has to do with doing things on the spur of the moment — and not good things. Being impetuous usually goes along with being impatient and easily angered. If you're impetuous, you act quickly and thoughtlessly when you should just take a deep breath, relax, and think about the best thing to do.

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Vocabulary lists containing impetuous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Impetuous decisions are to Don as spinach is to Popeye.

From Slate • May 6, 2013

Impetuous and wiry, the performance opened with an undulant sway that was instantly seductive; the third movement brought quiet playing of an integrity and intensity that proved utterly gripping.

From New York Times • Apr. 15, 2012

Impetuous, Herr Bugg-Moe fired upon the squirrel without pondering his aim.

From Time Magazine Archive

Impetuous, he was apt to use a pickaxe.

From Time Magazine Archive

But Susa, the Swift, the Brave, the Impetuous, the Long-Haired, the Thrice Unhappy, the Lord of the Sea, him the deities arraigned to stand trial in the dry bed of the Tranquil River of Heaven.

From Japanese Fairy Tales by James, Grace

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