schismic
/ˌskɪzˈmætɪk/Definitions
1. adjective
characterized by or promoting schism or division, especially in a religious or ecclesiastical context
“The schismatic movement within the church threatened to tear the community apart.”
2. noun
a person who promotes or supports schism or division, especially in a religious or ecclesiastical context
“The schismatic leaders were expelled from the church for their divisive views.”