ADJ-GRADED 难以理解的;晦涩难懂的Unintelligible language is impossible to understand, for example because it is not written or pronounced clearly, or because its meaning is confused or complicated. 难以理解的;晦涩难懂的
He muttered something unintelligible.
他嘴里不知咕哝了几句什么。
I did my best to join in, but the conversation was largely unintelligible.
我努力想插上话,可是大部分谈话内容我都听不懂。
...the unintelligible phrases and images of his earlier poems.