摸不著頭腦 mō bu zháo tóu nǎo

DEFINITIONS

  1. to be unable to make any sense of the matter
  2. to be at a loss

CHARACTERS

摸 mō
HSK 5
gently touch with hand; caress
不 bu
HSK 1
no, not; un-; negative prefix
著 zháo
HSK 4
manifest; (Cant.) to wear
頭 tóu head; top; chief, first; boss
腦 nǎo brain