sectarianism

stubborn or intolerant adherence to one's opinions or prejudices an ideological sectarianism that prevented the political party from ever being anything more than a fringe group Synonyms dogmatism, illiberalism, illiberality, illiberalness, intolerance, intolerantness, narrow-mindedness, opinionatedness, partisanship, bigotry, small-mindednessRelated Words conservatism, reactionaryism; insularism, insularity, parochialism, provincialismNear Antonyms progressiveness, progressivismAntonyms broad-mindedness, liberalism, liberality, open-mindedness, tolerance