impetuous

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Merriam-Webster's Word of the Day

2025-09-30

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Merriam-Webster's Word of the Day for September 30, 2025 is: impetuous • im-PECH-uh-wus  • adjective Impetuous is a synonym of impulsive that describes a person who is acting without thought, or an action that is done without thought. // That impetuous decision could've cost us everything we worked so hard for. See the entry > Examples: “She takes off, impetuous and alone, for a cross-country trip, seeking some kind of self-understanding as she ultimately lands in the forests of California’s redwood country, finding both a sanctuary and, whether she knows it or not, a bucket-list tribute to her late son.” — Greg Evans, Deadline, 28 Apr. 2025 Did you know? Impetuous types make impetuous decisions: they leap before they look, put carts before horses, count their chickens before even the tiniest of cracks appear on the eggs. In other words, they’re impulsive. The etymology of impetuous is also impulsive but in a literal way: it traces back to the Latin word impetus, meaning “impulse, driving force,” as well as “assault.” English impetus, also meaning “impulse, driving force” (among other things), has the same source.
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  • It's the Word of the Day podcast for September 30th.

  • Today's word is impetuous, spelled I-M-P-E-T-U-O-U-S.

  • Impetuous is an adjective.

  • It's a synonym of the word impulsive that describes a person who is acting without thought or an action that is done without thought.

  • Here's the word used in a sentence from Deadline by Greg Evans.

  • She takes off impetuous and alone for a cross-country trip,

  • seeking some kind of self-understanding

  • as she ultimately lands in the forests of California's Redwood Country,

  • finding both a sanctuary and, whether she knows it or not, a bucket list tribute to her late son.

  • Impetuous types make impetuous decisions.

  • They leap before they look, put carts before horses,

  • count their chickens before even the tiniest of cracks appear on the eggs.

  • In other words, they're impulsive.

  • The etymology of the word impetuous is also impulsive, but in a literal way.

  • It traces back to the Latin word impetus, meaning impulse, driving force, as well as assault.

  • The English word impetus, also meaning impulse or driving force,

  • among other things, has the same source.

  • With your Word of the Day, I'm Peter Sokolowski.