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adj C2 Proficient

arcane

ahr-KAYN

Arcane (adj) means Understood by very few people; mysterious and difficult to grasp because of how obscure or specialized it is. Example: “The tax code is full of arcane rules that even accountants struggle with.”

adj
1
Understood by very few people; mysterious and difficult to grasp because of how obscure or specialized it is.
"The tax code is full of arcane rules that even accountants struggle with."
"He was fascinated by arcane rituals described in old manuscripts."

How to use arcane

Learner’s notes

In plain EnglishSo obscure or specialized that hardly anyone understands it.

Common mistake

"Arcane" means obscure/secret knowledge; "archaic" means old-fashioned or no longer in common use — a rule can be arcane without being old.

Easily confused with
Common pairings
arcane knowledge arcane rules arcane rituals

Word forms

more arcane comparative, most arcane superlative

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Fill the gap

Can you complete this real example?

The tax code is full of _____ rules that even accountants struggle with.

Etymology

From Latin arcanus, "hidden, secret", from arceo, "to shut in or enclose".

Origin: Latin

Related words

Rhymes for arcane

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Frequently asked questions

What does “arcane” mean?

The word “arcane” means understood by very few people; mysterious and difficult to grasp because of how obscure or specialized it is. In plain terms, so obscure or specialized that hardly anyone understands it.

How do you pronounce “arcane”?

“Arcane” is pronounced ahr-KAYN (/ɑɹˈkeɪn/ in IPA).

How do you use “arcane” in a sentence?

Here is “arcane” used in a sentence: “The tax code is full of arcane rules that even accountants struggle with.”

What is another word for “arcane”?

Words with a similar meaning to “arcane” include dark, enigmatic, esoteric, mystic, obscure and occult.

What is the opposite of “arcane”?

The opposite of “arcane” — its antonyms — are accessible, exoteric, irrecondite, nonesoteric and well-known.

What part of speech is “arcane”?

“Arcane” is an adjective.

Where does the word “arcane” come from?

The word “arcane” comes from Latin. From Latin arcanus, "hidden, secret", from arceo, "to shut in or enclose".

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