contingent on vs dependant upon

contingent on and dependant upon both are adjectives.

Word	Noun	Adjective	Verb	Adverb
contingent on	No	Yes	No	No
dependant upon	No	Yes	No	No

As adjectives, contingent on and dependant upon are synonyms defined as:

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

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

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