cultish
/ˈkʌltɪʃ/Definitions
1. adjective
having or showing a tendency to join or follow a cult or to behave in a way that is characteristic of a cult.
“The cultish atmosphere of the group made it difficult for outsiders to join.”
2. adjective
characterized by or resembling a cult, especially in being devoted to a particular interest or activity.
“The film’s cultish following was due to its unique blend of humor and horror.”