uninformed vs unacquainted

uninformed and unacquainted both are adjectives.

Word	Noun	Adjective	Verb	Adverb
uninformed	No	Yes	No	No
unacquainted	No	Yes	No	No

uninformed (adjective)	unacquainted (adjective)
not informed; lacking in knowledge or information	having little or no knowledge of
	not knowledgeable about something specified