impetuous

im-PETCH-oo-us /ɪmˈpɛtʃ.u.əs/
adjectiveC1GRESATTOEFL
formalliterary

Acting or done quickly and without thought or care; moving with great force or violence.

Implies passion, hot-headed energy, and forcefulness behind the unconsidered action.

The story behind the word. From Late Latin impetuosus, derived from Latin impetus meaning 'attack' or 'rapid motion'. The word entered Middle English via Old French, maintaining its sense of physical or emotional violence driving a person forward like a raging torrent.

Word relationships

  • impulsive: Impulsive stresses acting on immediate internal feeling; impetuous adds a dimension of violent or headlong physical momentum.
  • rash: Rash emphasizes foolish disregard for consequences, whereas impetuous emphasizes passionate emotion driving the action.
  • cautious: Cautious implies deliberate care and foresight before acting.
  • deliberate: Deliberate indicates actions undertaken after careful thought and calculation.

Commonly confused with

  • impetus: Impetus is a noun meaning a moving force or stimulus; impetuous is an adjective describing hot-headed behavior.

Word family

  • impetuosity (noun): The quality or state of being impetuous.
  • impetuously (adverb): In an impetuous manner.

Collocations

  • impetuous nature
  • impetuous youth
  • impetuous decision
  • impetuous act

Idioms & expressions

  • leap before looking
  • fly off the handle

Example sentences

  • "I rushed into the hall, which was empty; I plunged into the streets, with the impetuous fury of a storm." Literary depiction of frantic movement
  • "The founder's impetuous decision to expand into three overseas markets simultaneously exhausted their financial reserves within six months." Corporate strategy critique

Memory hook

An IMpatient PET (impet-uous) always rushes through the open door without thinking. Rushing forward like a storm without looking where you land.

When not to use

Do not use for deliberate, slow-moving negligence; it requires driving force or emotion.

Fun facts

  • In classical poetry, rivers, gales, and military charges were routinely called 'impetuous' long before the word was predominantly applied to human temperaments.
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