denominationalism vs sectarianism

denominationalism and sectarianism both are nouns.

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

As nouns, denominationalism and sectarianism are synonyms defined as:

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

denominationalism (noun)	sectarianism (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