one-horse vs provincial

one-horse is not a noun while provincial is a noun.

Word	Noun	Adjective	Verb	Adverb
one-horse	No	Yes	No	No
provincial	Yes	Yes	No	No

one-horse (noun)	provincial (noun)
	a country person
	(Roman Catholic Church) an official in charge of an ecclesiastical province acting under the superior general of a religious order

one-horse (adjective)	provincial (adjective)
small and remote and insignificant	characteristic of the provinces or their people
	of or associated with a province