uncertain vs contingent

uncertain is not a noun while contingent is a noun.

Word	Noun	Adjective	Verb	Adverb
uncertain	No	Yes	No	No
contingent	Yes	Yes	No	No

uncertain (noun)	contingent (noun)
	a temporary military unit
	a gathering of persons representative of some larger group

uncertain (adjective)	contingent (adjective)
not established beyond doubt; still undecided or unknown	being determined by conditions or circumstances that follow
lacking or indicating lack of confidence or assurance	possible but not certain to occur
not certain to occur; not inevitable	uncertain because of uncontrollable circumstances
not established or confirmed
ambiguous (especially in the negative)
not consistent or dependable
subject to change