Synonyms of impetuous

1 Syllable

quick, rash, swift, brash

2 Syllables

headlong, jaunty, flighty, heedless, hasty, brashest, fiery, furious, hastier, fiercest, brasher, fierce, fiercer, flightier, dingdong, hastiest, violent, quicker, jauntier, sudden, ardent, rushing, rampant, abrupt, quickest, prankish, asap, whirlwind, flightiest, hurried, eager, fervid

3 Syllables

spontaneous, unbidden, death-defying, hotheaded, incautious, impatient, unwary, unthinking, vehement, restive, unruly, hotblooded, cyclonic, subito, unplanned, unalert, hot-and-cold, unprompted, short-spoken, unbridled, boisterous, volcanic, quixotic, fulminant

4 Syllables

unforbearing, gamesome, impassioned, excitable, precipitant, unrestrained, highpowered, high-pressure, passionate, self-asserting, hysterical, precipitous, unvigilant, desperate, unlooked-for, explosive, unreflecting, subitaneous, indocile, unexpected, impulsive, emotional, harefooted, eruptive

5 Syllables

spur-of-the-moment, ill-considered, precipitate, unconsidered, unmeditated, unpremediated, detonative

6 Syllables

unpremeditated