Covenant-breaker
Covenant-breaker is a term used in the Baháʼí Faith to refer to a person who has been excommunicated from the Baháʼí community for breaking the Covenant of Baháʼu'lláh, meaning actively promoting schism in the religion or otherwise opposing the legitimacy of the chain of succession of leadership. Excommunication among Baháʼís is extremely rare and not used for transgressions of community standards, intellectual dissent, or conversion to other religions.