provincial vs one-horse

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

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

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

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