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Related to esoterics: esoterica


a. Intended for or understood by only a small group, especially one with specialized knowledge or interests: an esoteric philosophical doctrine. See Synonyms at mysterious.
b. Relating to or being a small group with specialized knowledge or interests: an esoteric circle.
2. Not known by or suitable for the public; private: Few understood the celebrity's esoteric side.
1. One that is esoteric.
2. esoterics Esoteric matters; esoterica: "The course ... is anything but an exercise in ivory tower esoterics" (Sharon Waxman).

[Greek esōterikos, from esōterō, comparative of esō, within; see en in Indo-European roots.]

es′o·ter′i·cal·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in classic literature ?
Only at our University in some of the very highest and most esoteric classes -- which I myself have never been privileged to attend -- it is understood that the sparing use of Colour is still sanctioned for the purpose of illustrating some of the deeper problems of mathematics.
Only she had lived for years with Juliana, she had seen and handled the papers and(even though she was stupid) some esoteric knowledge had rubbed off on her.
This seems to me to give an account of the great struggle which must have taken place in Nietzsche's soul before he finally resolved to make known the more esoteric portions of his teaching.