arcane
adjective
UK/ɑːˈkeɪn/
US/ɑːrˈkeɪn/
Definitions of arcane adjective
understood or known by only a few; mysterious or secret
神秘的；祕密的；晦澀難懂的
He delved into the arcane ancient texts.
他深入研究那些神秘的古代文獻。
Many of the rules of this discipline are arcane to the uninitiated.
這門學科的許多規則對於外行人來說是晦澀難懂的。
She had an astounding understanding of the arcane details of the subject.
她對這門學科的深奧細節有著驚人的理解。