sectarist
/sɛkˈtɛəriən/Definitions
1. noun
A person who strongly identifies with and advocates for a particular sect or religious group, often in a way that is exclusive or intolerant towards others.
“The sectarian tensions between the two neighboring towns were a major concern for the local government.”
2. adjective
Relating to or characteristic of a particular sect or religious group.
“The sectarian violence in the city led to a state of emergency being declared.”