自生自滅 [－－－灭]

Jyutping zi6 sang1 zi6 mit6
Pinyin zì shēng zì miè

Definitions (CC-CEDICT)
  1. to emerge and perish on its own; to run its course (idiom)
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. phrase, idiomatic
    to (let something) emerge and perish on its own; to let something go its own way
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）