Schismatic (noun)

A person who creates or takes part in a schism, especially in the Christian Church.

Origin:

Late middle english: via ecclesiastical latin from greek skhismatikos, from skhisma "split, schism", from skhizein "to split".

Examples:

1. He is considered a schismatic by the Catholic Church.
2. The schismatic sect believed that the true church was not the one led by the Pope.
3. The schismatic group broke away from the main church due to disagreements over doctrine.
4. Schismatic movements have caused division and conflict within the church.
5. Schismatic individuals or groups may be excommunicated by the church.