不为人知 Traditional 不為人知 bù wéi rén zhī 🔊 not known to anyone + Keep this word Meanings bù wéi rén zhī 不為人知 not known to anyonesecretunknown Its characters 不bùnot; noHSK 1为wèibecause ofHSK 3人rénperson; peopleHSK 1知zhīto know