sectarianism vs denominationalism

sectarianism and denominationalism both are nouns.

Word	Noun	Adjective	Verb	Adverb
sectarianism	Yes	No	No	No
denominationalism	Yes	No	No	No

As nouns, sectarianism and denominationalism are synonyms defined as:

sectarianism and denominationalism: a narrow-minded adherence to a particular sect or party or denomination

sectarianism (noun)	denominationalism (noun)
a narrow-minded adherence to a particular sect or party or denomination	a narrow-minded adherence to a particular sect or party or denomination
	the tendency, in Protestantism, to separate into religious denominations or to advocate such separations