impetuous

From Middle English, from Old French impetueux, from Late Latin impetuōsus (“violent”), from Latin impetus (“attack, violence”).

• IPA^(key): /imˈpɛtʃuəs/

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impetuous (comparative more impetuous, superlative most impetuous)

1. Making arbitrary decisions, especially in an impulsive and forceful manner.
   • 1880, John Weeks Moore, Complete Encyclopaedia of Music, "Beethoven, Louis Van":

     But it was natural, that the impetuous, restless young artist should incline more to excess of strength than of delicacy in his playing.

2. Characterized by sudden violence or vehemence.
   • 1590, Edmund Spenser, The Faerie Qveene. […], London: Printed [by John Wolfe] for VVilliam Ponsonbie, OCLC 960102938, book II, canto IX, stanza 14, page 311:

     For with ſuch puiſſance and impetuous maine / Thoſe Champions broke on them, that forſt the fly, / Like ſcattered Sheepe, whenas the Shepherds ſwaine / A Lyon and a Tigre doth eſpye, / With greedy pace forth ruſhing from the foreſt nye.

   • 1794, Ann Radcliffe, The Mysteries of Udolpho, vol. II, chapter I:

     He stands, and views in the faint rays
     Far, far below, the torrent's rising surge,
     And listens to the wild impetuous roar

   • 1813, Jane Austen, chapter 4, in Pride and Prejudice, volume III:

     "Oh! where, where is my uncle?" cried Elizabeth, darting from her seat as she finished the letter, in eagerness to follow him, with-out losing a moment of the time so precious; but as she reached the door, it was opened by a servant, and Mr. Darcy appeared. Her pale face and impetuous manner made him start […]

   • 1917 rev. 1925, Ezra Pound, "Canto I"

     Unsheathed the narrow sword,

     I sat to keep off the impetuous impotent dead ...

• impulsive
• hasty
• rash
• hotheaded

• impetuously
• impetuousness