unrestricted vs public

unrestricted is not a noun while public is a noun.

Word	Noun	Adjective	Verb	Adverb
unrestricted	No	Yes	No	No
public	Yes	Yes	No	No

unrestricted (noun)	public (noun)
	people in general considered as a whole
	a body of people sharing some common interest

unrestricted (adjective)	public (adjective)
not subject to or subjected to restriction	not private; open to or concerning the people as a whole
free of restrictions on conduct	affecting the people or community as a whole
not restricted or exclusive
never having had security classification
not restricted or modified in meaning