Definitions:

1. Refers to the tendency to act quickly and without careful thought, often driven by sudden desires, emotions, or urges rather than logic or planning. NOUN
   • Her impulsiveness led her to quit her job without having another one lined up.
2. Temdency to act on a whim, or without careful thought or consideration of the consequences. NOUN
   • In moments of stress, her impulsiveness often dictated her actions.
3. The trait of acting suddenly on impluse without reflection. NOUN
   • Impulsiveness in decision-making can lead to unintended consequences.

Synonyms:

• haste
• impetuosity
• rashness
• recklessness
• spontaneity