contributory

Universal Words adjective [usuallybeforenoun] 1 helping to cause sth: Alcohol is a contributory factor in 10% of all road accidents. * Smoking is a contributory cause of many diseases. * (BrE) He was found guilty of contributory negligence (= that helped to cause an accident). 2 involving payments from the people who will benefit: a contributory pension scheme / plan (= paid for by both employers and employees) * contributory benefits (= ones that you make payments for) OPPNON-CONTRIBUTORY