IPA: /ɪmˈpʌl.sɪ.vɪ.ti/
KK: /ɪmˈpʌl.sɪ.vɪ.ti/
The tendency to act quickly without thinking about the consequences.
Her impulsivity often leads her to make hasty decisions that she later regrets.
Impulsivity is formed from "impulsus" (from Latin, meaning a push or thrust) and the suffix "-ity" (meaning the state or quality of). The word describes the state of being driven by sudden urges or pushes to act without forethought.
Think of 'impulsus' as a push that drives you to act suddenly — that's why impulsivity means acting on sudden urges.