36 synonyms for impulsive such as daredevil, abandoned, and adventurous. Impulsive is an adjective, and its antonyms are cautious and premeditated.
Abandoned, adventurous, daredevil, daring, devil-may-care, emotional, extemporaneous, foolhardy, hasty, headlong, hot-headed, ill-considered, ill-thought-out, impetuous, impromptu, imprudent, incautious, injudicious, madcap, passionate, precipitate, quick, rash, reckless, snap, spontaneous, spur-of-the-moment, sudden, thoughtless, uninhibited, unplanned, unpremeditated, unrepressed, unthinking, and wild.