dependant on vs contingent upon

dependant on and contingent upon both are adjectives.

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

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

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

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

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