名不經傳 [－－经传]

Jyutping ming4 bat1 ging1 cyun4
Pinyin míng bù jīng zhuàn

Definitions (粵典–words.hk)
  1. 形容詞
    唔​ ​出名​、​冇​咩​人知​、​冇​咩​人識
    not well known