restricted vs classified

restricted is not a noun while classified is a noun.

Word	Noun	Adjective	Verb	Adverb
restricted	No	Yes	No	No
classified	Yes	Yes	No	No

restricted (noun)	classified (noun)
	a short ad in a newspaper or magazine (usually in small print) and appearing along with other ads of the same type

restricted (adjective)	classified (adjective)
subject to restriction or subjected to restriction	arranged into classes
the lowest level of official classification for documents	official classification of information or documents; withheld from general circulation
restricted in meaning; (as e.g. `man' in `a tall man')