adj.
Pronunciation: im- ' p ə l-siv
Function: adjective
Date: 15th century
1 : having the power of or actually driving or impelling
2 a : arising from an impulse <an impulsive decision> b : prone to act on impulse <an impulsive young man>
3 : acting momentarily
synonyms see SPONTANEOUS
– im · pul · sive · ly adverb
– im · pul · sive · ness noun
– im · pul · siv · i · ty \ - ˌ p ə l- ' si-v ə -t ē \ noun