艱
深
晦
澀
艱
深
晦
澀
Definitions4 charactersabstruse unfathomable (idiom)
Usage•••frequent
Pronunciations
艱
深
晦
澀
As word
1abstruse and unfathomable (idiom)
2abstruse and unfathomable (idiom)
3abstruse and unfathomable (idiom)
4abstruse and unfathomable (idiom)