dependent upon vs contingent upon

dependent upon and contingent upon both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dependent upon	No	Yes	No	No
contingent upon	No	Yes	No	No

As adjectives, dependent upon and contingent upon are synonyms defined as:

dependent upon and contingent upon: being determined by conditions or circumstances that follow

Other synonyms of dependent upon include contingent, contingent on, dependant on, dependant upon, dependent on, depending on.

dependent upon (adjective)	contingent upon (adjective)
being determined by conditions or circumstances that follow	being determined by conditions or circumstances that follow