不为人知
Traditional form:
不為人知
Pinyin (reading):
bùwéirénzhī
Definitions:
- not known to anyone
- secret
- unknown
Characters:
- 不 - no, not, un-; negative prefix
- 为 - to do, to act; to handle, to govern; to be
- 人 - man, person; people
- 知 - to know, to perceive, to comprehend
Traditional characters: