contributive vs contributory

contributive and contributory both are adjectives.

Word	Noun	Adjective	Verb	Adverb
contributive	No	Yes	No	No
contributory	No	Yes	No	No

As adjectives, contributive and contributory are synonyms defined as:

contributive and contributory: tending to bring about; being partly responsible for

Other synonyms of contributive include conducive, contributing, tributary.

contributive (adjective)	contributory (adjective)
tending to bring about; being partly responsible for	tending to bring about; being partly responsible for