密不透風 mì bù tòu fēng

impenetrable; sealed off

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. impenetrable
  2. 2. sealed off

Characters

Character Meaning
密 mì HSK 4
secret; confidential; close
不 bù HSK 1
not; no; (negative prefix)
透 tòu HSK 5
thoroughly; completely; to pass through
風 fēng
wind; style; manner