undetermined vs uncertain

undetermined and uncertain both are adjectives.

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

undetermined (adjective)	uncertain (adjective)
not yet having been ascertained or determined	not established beyond doubt; still undecided or unknown
not precisely determined or established; not fixed or known in advance	lacking or indicating lack of confidence or assurance
not brought to a conclusion; subject to further thought	not certain to occur; not inevitable
	not established or confirmed
	ambiguous (especially in the negative)
	not consistent or dependable
	subject to change