One who is seemingly addicted to the sensation of exhilaration associated with risky behaviors or exciting situations, and who actively seeks such opportunities.
One whose behaviour or personality is characterized by being impulsive.
That which impels or gives an impulse; an impelling agent.
Acting momentarily, or by impulse; not continuous – said of forces.
Having the power of driving or impelling; giving an impulse; moving; impellent.
Actuated by impulse or by transient feelings; inclined to make rapid decisions without due consideration.