Deviating from normal opinions or actions; eccentric; odd.
Unsteady, random; prone to unexpected changes; not consistent.
A rock moved from one location to another, usually by a glacier.
Anything that has erratic characteristics.
Actuated by impulse or by transient feelings; inclined to make rapid decisions without due consideration.
Acting momentarily, or by impulse; not continuous – said of forces.
Having the power of driving or impelling; giving an impulse; moving; impellent.
That which impels or gives an impulse; an impelling agent.
One whose behaviour or personality is characterized by being impulsive.