limited vs small-scale

limited is a noun but small-scale is not a noun.

Word	Noun	Adjective	Verb	Adverb
limited	Yes	Yes	No	No
small-scale	No	Yes	No	No

limited (noun)	small-scale (noun)
public transport consisting of a fast train or bus that makes only a few scheduled stops

limited (adjective)	small-scale (adjective)
small in range or scope	relatively moderate, limited, or small
not unlimited	created or drawn on a small scale
not excessive
including only a part
mediocre
subject to limits or subjected to limits
having a specific function or scope