exclusivist

Example:The members-only club has an exclusive policy to maintain its prestige.

Definition:Of or relating to a small group or a select few, and open to membership only by those who meet certain conditions or criteria.

Example:His sectarian views led him to form a splinter group that excluded members from other denominations.

Definition:Characteristic of a particular sect, or of the followers or advocates of a doctrine or cause, often to the exclusion of others.