#1
impulsive s. [
unprompted] proceeding from natural feeling or impulse without external stimulus; "an impulsive gesture of affection"
. wn #2
impulsive s. [
driving] having the power of driving or impelling; "a driving personal ambition"; "the driving force was his innate enthusiasm"; "an impulsive force"
. wn #3
impulsive s. [
capricious, whimsical] determined by chance or impulse or whim rather than by necessity or reason; "a capricious refusal"; "authoritarian rulers are frequently capricious"; "the victim of whimsical persecutions"
. wn #4
impulsive s. [
hotheaded, impetuous, madcap, tearaway, brainish] characterized by undue haste and lack of thought or deliberation; "a hotheaded decision"; "liable to such impulsive acts as hugging strangers"; "an impetuous display of spending and gambling"; "madcap escapades"; ('brainish' is archaic)
. wn