Impulsive

impulsiivinen

(having the power of driving or impelling; giving an impulse; moving; impellent)

impulsiivinen

(actuated by impulse or by transient feelings)

impulsiivinen

(highly reactive; inclined to make rapid decisions without due consideration)

äkillinen

((mechanics) acting momentarily, or by impulse; not continuous)

äkkipikainen

(highly reactive; inclined to make rapid decisions without due consideration)