Sectarianism

n.

1.

The quality or character of a sectarian; devotion to the interests of a party; excess of partisan or denominational zeal; adherence to a separate church organization.

Noun

1.

sectarianism - a narrow-minded adherence to a particular sect or party or denomination; "he condemned religious sectarianism" Synonyms: denominationalism

clannishness, clanship, cliqueyness, cliquishness, cliquism, denominationalism, eclecticism, esprit de corps, ethnocentricity, exclusiveness, faction, factionalism, partiality, partisanism, partisanship, party spirit, schismatism, sectarism, sectionalism, syncretism