esoteric
US /ˌes.əˈter.ɪk/
UK /ˌes.əˈter.ɪk/

形容词
1.
深奥的, 秘传的, 只有少数人懂的
intended for or likely to be understood by only a small number of people with a specialized knowledge or interest.
示例:
•
The book was full of esoteric references that only a few scholars could understand.
这本书充满了只有少数学者才能理解的深奥的引用。
•
His lectures often contained esoteric jokes that went over most people's heads.
他的讲座中常有深奥的笑话,大多数人听不懂。
在 Lingoland 学习这个单词