(尤指知识、语言或规则)神秘难懂的;晦涩的;只有少数人懂的。(也可指“奥秘的/秘传的”,较文学或正式)
/ɑːrˈkeɪn/
The instructions were so arcane that I gave up.
这些说明太晦涩难懂了,我只好放弃。
The professor explained an arcane legal principle that even advanced students rarely understand.
教授讲解了一个晦涩的法律原则,连高年级学生也很少能理解。
“Arcane”来自拉丁语 arcanus,意为“秘密的、隐蔽的”,与 arca(箱子、柜子;引申为“存放秘密之处”)有关。词义从“隐藏的秘密”逐渐发展为“只有少数人懂的深奥内容”。