Esoteric

Definition of Esoteric.

Meaning;

a group that is limited to a small number of people.
knowledge known to a small number of people or a special group.
rituals of life adopted by a small number of people or a special group.

Related
  • Esoteric knowledge

  • Esoteric culture

  • Esoteric community

Examples

You cannot join an esoteric group at any time.

According to

 
Within the category of ‘esoteric knowledge’ one understands a variety of related expressions, such as ‘mystical’ or ‘occult’, as well as the more concrete ‘absolute’ or ‘elevated’ knowledge, which can also be considered as ‘hidden’, ‘secret’, or ‘inaccessible’.

Mark Geller, Klaus Geus

Esoteric Knowledge in Antiquity
 
Esoteric culture exists in marked contrast with the socially dominant exoteric culture, and it is distinguishable in terms of a lack of socially sanctioned legitimacy in Western societies.

Danny L. Jorgensen

The Esoteric Scene, Cultic Milieu, and Occult Tarot