arcane
arcane
known or understood by very few; mysterious; secret; obscure; esoteric
Esoterism or questions of vocabulary was the adjective applied in ancient Greece forteaching in some schools and also used only the exceptionally bright pupils to learn it it completed and deepened the doctrine and could be applied to any doctrine or body of knowledge that was spoken and in university philosophy the esoteric is first and foremost the initiated disciple of pythagorasif the disciples had been judged worthy by their way of life and their civility after a silence of five years they became known as esoterics and were entitled to hear pythagarus the esoteric is an occult sense of a work of art according to the shi ite who said our cause is the truth of truth it is the esoteric the esoteric of the esoteric and the esoteric of the esoteric it is the secret of the secret it is the secret of that which remains veiled a secret wrapped up in secret in short the esoteric is the hidden content of a doctrine or teaching or any given thing
requiring secret or mysterious knowledge, Know only to the initiate,
arcane
The adjective esoteric can mean private, secret, obscure, or understood by few.Antonyms of private include public, open, known, or unconcealed.Antonyms of obscure would be common, popular, familiar, or well-known.Antonyms of abstruse would be simple, plain, clear, or obvious.
How about "magic"?
A secret ballad is a traditional form of narrative poetry that tells a story or recounts a historical event. It is often passed down orally and may contain elements of mystery or intrigue. The term "secret" suggests that the ballad may reveal hidden truths or esoteric knowledge.
hidden, covert, arcane, obscure, esoteric, classified,
Secret
Not exactly. Arcane means "understood only by few", derived from the Latin word for "secret." Confusing means that something is "unclear, or incomprehensible." Something that is incomprehensible might be understood by a few (or at least they'll claim to understand it), Arcane more hints at obscure knowledge, rather than that the knowledge is gibberish.
The word esoteric is from the root for "within" and usually refers to something private, secret, confidential, or known to only a few. It is often applied to subjects or concepts of a very limited or specialized interest, e.g. esoteric mathematical theories.