impulsive

Meanings

• proceeding from natural feeling or impulse without external stimulus
  • "an impulsive gesture of affection"
• without forethought
  • "letting him borrow her car was an impulsive act that she immediately regretted"
• having the power of driving or impelling
  • "an impulsive force"
• determined by chance or impulse or whim rather than by necessity or reason
• characterized by undue haste and lack of thought or deliberation; ; ; ; ; (`brainish' is archaic)
  • "liable to such impulsive acts as hugging strangers"

Synonyms

brainish, capricious, driving, hotheaded, impetuous, madcap, tearaway, unprompted, whimsical