[adj] tending to bring about; being partly responsible for; "working conditions are not conducive to productivity"; "the seaport was a contributing factor in the growth of the city"; "a contributory factor"
causative, conducive, contributing(a), contributive
accessory, additional, adjuvant, aidful, ancillary, another, appurtenant, auxiliary, beneficial, collateral, concessive, conducive, constructive, donative, extra, farther, fresh, further, furthersome, good for, helpful, intestate, more, new, other, plus,