small-scale vs limited

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

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

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

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