sectarian
1. sec.tar.i.an \sek-'ter-e--*n\ \-e--*-.niz-*m\ aj 1: of, relating to, or characteristic of a sect or sectarian 2: limited in character or scope : PAROCHIAL - sec.tar.i.an.ism n 2. sectarian n 1: an adherent of a sect 2: a narrow or bigoted person