惟恐天下不亂 [－－－－－乱]

Jyutping wai4 hung2 tin1 haa6 bat1 lyun6
Pinyin wéi kǒng tiān xià bù luàn

Definitions (粵典–words.hk)
  1. 語句
    指一個​人周​圍​製​造​問​題​，​好似​想​搞​到​天下​大亂​咁
    to make trouble or mess up all around (as if the doer wanted the whole world to be in chaos)
  2. 參看
    唯恐天下不亂