“Unlike his predecessor, who was seen as ecumenical, Benedict is seen as a sectarian who will not reach out to other religions.”
“Mikhaelov established himself at the house of a dissenting sectarian, and undertook the study of the Scriptures and of the dogmas of the sect for the purpose of becoming a sectarian teacher.”
sectarianist
One who narrow-mindedly devotes themselves to a particular sect, especially in religion.