深奥

HSK 7-9

shēn'ào

profound; difficult to understand; abstruse

abstruse; recondite; profoundly

这个问题很深奥。

zhè ge wèntí hěn shēn'ào

This issue is very profound.

他的思想非常深奥。

tā de sīxiǎng fēicháng shēn'ào

His thoughts are very profound.