dependant upon vs contingent upon

dependant upon and contingent upon both are adjectives.

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

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

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

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

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