Synonyms of arcane

arcane

adjective

är-ˈkān 

1

as in esoteric

difficult for one of ordinary knowledge or intelligence to understand

grammatical rules that seem arcane to generations of students who were never taught grammar in the first place

Synonyms & Similar Words

• esoteric
• profound
• recondite
• abstruse
• scholarly
• ambiguous
• hermetic
• deep
• academic
• mystical
• confusing
• complicated
• complex
• mystic
• enigmatic
• mysterious
• cryptic
• erudite
• pedantic
• inscrutable
• incomprehensible
• learned
• unintelligible
• uncanny
• unfathomable
• impenetrable
• unknowable
• baffling
• perplexing
• puzzling
• confounding
• unanswerable
• orphic
• disorienting
• mystifying
• darkling
• hard
• bewildering

Antonyms & Near Antonyms

• superficial
• simple
• shallow
• easy
• straightforward
• intelligible
• understandable
• obvious
• apparent
• comprehensible
• distinct
• plain
• clear
• facile
• evident
• transparent
• lucid
• manifest
• fathomable
• clear-cut
• perspicuous

2

as in cryptic

having an often intentionally veiled or uncertain meaning

the rebate form uses arcane language, the only purpose of which seems to be to disqualify buyers from actually getting a rebate

Synonyms & Similar Words

• cryptic
• ambiguous
• obscure
• dark
• esoteric
• mystic
• mysterious
• enigmatic
• murky
• vague
• opaque
• occult
• inscrutable
• unclear
• nebulous
• questionable
• Delphic
• deep
• equivocal
• uncertain
• elliptical
• recondite
• confusing
• abstruse
• obscurant
• fuliginous
• complicated
• weird
• uncanny
• double-edged
• eerie
• incomprehensible
• cloaked
• shadowy
• shrouded
• indirect
• fuzzy
• indecipherable
• complex
• difficult
• inexplicable
• masked
• concealed
• hazy
• disguised
• obfuscatory
• clouded
• inexact
• puzzling
• foggy
• misty
• faint
• shaded
• indistinct
• invisible
• mystifying
• impenetrable
• indefinite
• baffling
• undefined
• muddy
• noncommittal
• perplexing
• intangible
• dim
• indistinguishable
• unknowable
• confounding
• bewildering
• cloudy
• unanswerable
• unfathomable
• undetermined
• sphinxlike
• impalpable
• inexplicit
• obtuse
• circuitous
• shadowlike
• beclouded
• inappreciable
• bedimmed
• roundabout
• befogged
• obnubilated

Antonyms & Near Antonyms

• obvious
• plain
• clear
• certain
• accessible
• unambiguous
• distinct
• intelligible
• understandable
• evident
• comprehensible
• unequivocal
• legible
• bright
• sure
• strong
• pellucid
• direct
• knowable
• firm
• defined
• nonambiguous
• explicit
• fathomable
• exact
• definite
• straightforward
• self-evident
• self-explanatory
• determined
• tangible
• visible
• appreciable
• palpable
• blatant
• unmistakable
• patent

3

as in mysterious

being beyond one's powers to know, understand, or explain

my predecessor in this job obviously had his own arcane system for filing things, and so I haven't a clue as to where anything is

Synonyms & Similar Words

• mysterious
• cryptic
• mystic
• obscure
• uncanny
• enigmatic
• deep
• dark
• inscrutable
• occult
• unexplainable
• murky
• impenetrable
• ambiguous
• vague
• mystical
• esoteric
• confusing
• metaphysical
• shadowy
• fuzzy
• incomprehensible
• unintelligible
• supernatural
• unfathomable
• recondite
• inexplicable
• unaccountable
• darkling
• abstruse
• imponderable
• unknowable
• equivocal
• unanswerable
• puzzling
• baffling
• perplexing
• confounding
• numinous
• mystifying
• disorienting
• unsearchable
• bewildering
• befuddling

Antonyms & Near Antonyms

• intelligible
• understandable
• obvious
• apparent
• plain
• clear
• evident
• fathomable
• transparent
• manifest
• unambiguous
• straightforward
• unmistakable
• palpable
• unequivocal
• patent
• perspicuous
• open-and-shut

Example Sentences

Recent Examples of arcane

The process was an arcane, possibly unworkable attempt to solve a problem—widespread noncitizen voting—that simply doesn’t exist. — David A. Graham, The Atlantic, 17 July 2026

The cat had blood pouring from its mouth and was surrounded by arcane symbols scrawled on the walls, court documents show. — Colin Mixson, New York Daily News, 10 July 2026

The tracks were all exactly five minutes long, which lent further mystery, as if they’d been produced by some arcane assembly line. — Andrew Ryce, Pitchfork, 6 July 2026

Davis was known for her policy chops and a deep understanding of complicated subjects gleaned by arcane research. — Jeff McDonald, San Diego Union-Tribune, 1 July 2026