agnostic vs nescient

agnostic is a noun but nescient is not a noun.

Word	Noun	Adjective	Verb	Adverb
agnostic	Yes	Yes	No	No
nescient	No	Yes	No	No

agnostic (noun)	nescient (noun)
a person who claims that they cannot have true knowledge about the existence of God (but does not deny that God might exist)
someone who is doubtful or noncommittal about something

agnostic (adjective)	nescient (adjective)
uncertain of all claims to knowledge	holding that only material phenomena can be known and knowledge of spiritual matters or ultimate causes is impossible
of or pertaining to an agnostic or agnosticism	uneducated in general; lacking knowledge or sophistication