Abstruse

晦澀 /晦涩

huìsè

(difficult to comprehend or understand — see also obscure)

深奧 /深奥

shēn'ào

(difficult to comprehend or understand — see also obscure)

深邃

shēnsuì

(difficult to comprehend or understand — see also obscure)

深長 /深长

shēncháng

(difficult to comprehend or understand — see also obscure)

玄妙

xuánmiào

(difficult to comprehend or understand — see also obscure)

玄祕 /玄秘

xuánmì

(difficult to comprehend or understand — see also obscure)

秘

bì, mì

(difficult to comprehend or understand — see also obscure)

艱深 /艰深

jiānshēn

(difficult to comprehend or understand — see also obscure)

艱澀 /艰涩

jiānsè

(difficult to comprehend or understand — see also obscure)

難解 /难解

nánjiě

(difficult to comprehend or understand — see also obscure)