English Dictionary

arcane

/ɑɹˈkeɪn/

adj

Understood by only a few. / (by extension) Obscure, mysterious. / Requiring secret or mysterious knowledge to understand. / Extremely old (e.g. interpretation or knowledge), and possibly irrelevant.

The professor's lecture on quantum mechanics was so arcane that only a few students could understand it.

意味（1）

Understood by only a few.

arcane rituals

意味（2）

(by extension) Obscure, mysterious.

arcane origins

意味（3）

Requiring secret or mysterious knowledge to understand.

A “signature” was placed on all things by God to indicate their affinities — but it was hidden, hence the search for arcane knowledge. Knowing was guessing and interpreting, not observing or demonstrating.

意味（4）

Extremely old (e.g. interpretation or knowledge), and possibly irrelevant.

An arcane law