sectarian

(noun) a member of a sect. Synonyms: sectary, sectarist. Example: "Most sectarians are intolerant of the views of any other sect."

(adj) of or relating to or characteristic of a sect or sects. Example: "Sectarian differences."

(adj) belonging to or characteristic of a sect. Synonyms: sectarian (vs. nonsectarian). Examples: "A sectarian mind." "The negations of sectarian ideology"- sidney hook." "Sectarian squabbles in psychology."