不知所云
Traditional form:
不知所云
Pinyin (reading):
bùzhīsuǒyún
Definitions:
- to not know what sb is driving at
- to be unintelligible
Characters:
- 不 - no, not, un-; negative prefix
- 知 - to know, to perceive, to comprehend
- 所 - place, location; "that which", a particle introducing a passive clause
- 云 - cloud; to say, to speak
Traditional characters: