死人尋舊路 [－－寻旧－]

Jyutping sei2 jan4 cam4 gau6 lou6
Pinyin sǐ rén xún jiù lù

Definitions (CC-CANTO)
  1. to describe someone who doesn't know how to be pragmatic / adapt to different situations and adheres to the old methods of doing things all the time
Definitions (粵典–words.hk)
  1. 語句
    唔​識​變通​，​沿用​舊​嘅​做事​方法
    to keep doing what one already knows