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WordReference Random House Learner's Dictionary of American English © 2024im•pet•u•ous /ɪmˈpɛtʃuəs/USA pronunciation adj. - of, relating to, or characterized by sudden or rash action or emotion; impulsive:an impetuous youth.
im•pet•u•os•i•ty /ɪmˌpɛtʃuˈɑsɪti/USA pronunciation n. [uncountable] im•pet•u•ous•ly, adv. See -pet-. WordReference Random House Unabridged Dictionary of American English © 2024im•pet•u•ous (im pech′o̅o̅ əs),USA pronunciation adj. - of, pertaining to, or characterized by sudden or rash action, emotion, etc.;
impulsive:an impetuous decision; an impetuous person. - having great impetus;
moving with great force;
violent:the impetuous winds.
- Late Latin impetuōsus, equivalent. to Latin impetu(s) impetus + -ōsus -ous
- Anglo-French
- Middle English 1350–1400
- 1.See corresponding entry in Unabridged eager, headlong. 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.
- 1.See corresponding entry in Unabridged planned, careful.
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