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arcane + noun
作定语修饰名词，表示“晦涩难懂的、神秘的”。
The book covers arcane details of medieval law.
这本书涵盖了中世纪法律的晦涩细节。
神秘的；晦涩难解的
arcanest — superlative of arcane
先理解核心含义，再看它在真实句子里的用法。
神秘的；晦涩难解的
known or understood by very few; secret or mysterious
The book covers arcane details of medieval law.
这本书涵盖了中世纪法律的晦涩细节。
只有少数人理解的。
Understood by only a few.
晦涩难懂的,神秘的。
Obscure, mysterious.
需要秘密或神秘知识才能理解的。
Requiring secret or mysterious knowledge to understand.
极其古老的(如解释或知识),且可能已过时的。
Extremely old (e.g. interpretation or knowledge), and possibly irrelevant.
This old manuscript is full of arcane symbols that only a few scholars can understand.
这份古老的手稿充满晦涩难解的符号，只有少数几位学者能看懂。
The rules of this board game seem arcane to me, even after I read the guide twice.
即使我读了两遍说明书，这种棋盘游戏的规则对我来说还是显得晦涩难懂。
He spends hours studying arcane computer code that hardly anyone else understands.
他花很多时间研究几乎没人看得懂的晦涩计算机代码。
作定语修饰名词，表示“晦涩难懂的、神秘的”。
The book covers arcane details of medieval law.
这本书涵盖了中世纪法律的晦涩细节。
介词 to 后接人，表示“对某人而言晦涩难懂”。
The ritual was arcane to most outsiders.
这种仪式对大多数外人来说晦涩难解。
find + 宾语 + arcane 表示“认为……晦涩难懂”，arcane 作宾语补足语。
I find his arguments arcane and unconvincing.
我觉得他的论证晦涩难解，难以令人信服。
Not this
This dictionary contains many arcane words that are no longer used.
Use this
This dictionary contains many archaic words that are no longer used.
学习者常将'arcane'误认为与'archaic'同义，表示'古老的'。但'arcane'意为'神秘的、晦涩难解的'，与时间久远无关；表示'古体的、过时的'应用'archaic'。此句中'no longer used'提示词义应为'archaic'。
Not this
He knows the arcane of alchemy.
Use this
He knows the arcana of alchemy.
'arcane'是形容词，不能用作名词。表示'奥秘、秘术'应用名词'arcana'（复数，源自拉丁语，也可用'mysteries'）。在'a of b'结构中需要一个名词，因此应把'arcane'改为'arcana'。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
深奥的知识；神秘学问
The book is full of arcane knowledge that few scholars can understand.
这本书充满了深奥的知识，很少有学者能理解。
神秘的仪式
The tribe still performs arcane rituals to honor the spirits.
这个部落仍然举行神秘的仪式来敬奉神灵。
晦涩难懂的语言
Legal documents often seem to be written in an arcane language.
法律文件往往像用晦涩难懂的语言写成的。
神秘技艺；魔法
In the novel, she masters the arcane arts to defeat the enemy.
在小说中，她掌握了神秘技艺来打败敌人。
秘传知识；奥秘传说
The old wizard shared his arcane lore with the young apprentice.
老巫师与年轻学徒分享他的秘传知识。
晦涩的细节
The report is bogged down with arcane details about the tax system.
这份报告被税务系统晦涩的细节所拖累，变得冗长乏味。
《双城之战》
Arcane is a critically acclaimed Netflix animated series where the arcane, a mysterious form of magic, powers the conflict between two cities.
《双城之战》是一部备受好评的Netflix动画剧集，其中“arcane”（神秘的魔法力量）推动着两座城市之间的冲突。
Use arcanest naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
谐音联想“暗刻”：秘密刻下的奥义，自然神秘晦涩，只有内行才懂。
语域：formal 常见场景：academic writing、formal essays、literary texts 通常多用于正式书面语、文学或学术语境，表示需要专门知识才能理解、带有神秘色彩的事物；在日常口语中较少见。常与 knowledge、subject、ritual 等名词搭配。
These words all rhyme with arcane because the stressed vowel and following sounds match /eɪn/. Remember arcane is ar-KAYN, not ar-KAHN; the '-cane' part sounds exactly like cane, sane, etc.
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.