• IPA: /imˈpɛtʃuəs/

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

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

     Unsheathed the narrow sword,

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

• impulsive
• hasty
• rash
• hotheaded

• French: impulsif, irréfléchi
• German: ungestüm, impulsiv, leidenschaftlich, unüberlegt
• Italian: impulsivo
• Portuguese: impetuoso
• Russian: поспе́шный
• Spanish: impulsivo, irreflexivo

• French: impétueux, brutal, brusque, violent
• German: ungestüm, stürmisch, brüsk, heftig
• Italian: irruente
• Portuguese: impetuoso, brusco
• Russian: поры́вистый
• Spanish: impetuoso, brutal, brusco, violento