不为人知 bù wéi rén zhī

Meanings

  1. not known to anyone
  2. secret
  3. unknown

Quick facts

Traditional
不為人知
HSK Level
HSK 7–9
CEFR
C2

Practice 不为人知 with flashcards

MandoBridge uses spaced repetition to help you remember HSK 7–9 vocabulary — free on iOS and Android.