自行其是 [－－－－]

Jyutping zi6 hang4 kei4 si6
Pinyin zì xíng qí shì

Definitions (CC-CEDICT)
  1. to act as one thinks fit
  2. to have one's own way
Definitions (Wiktionary)
  1. phrase, derogatory, idiomatic
    to do what one thinks is right without considering the opinions of others; to do one's own thing
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）