disposition, temperament -- (your usual mood; "he has a happy disposition")
disposal, disposition -- (the act or means of getting rid of something)
inclination, disposition, tendency -- (an attitude of mind especially one that favors one alternative over others; "he had an inclination to give up too easily"; "a tendency to be too strict")
disposition -- (a natural or acquired habit or characteristic tendency in a person or thing; "a swelling with a disposition to rupture")