遺害無窮 [遗－无穷]

Jyutping wai4 hoi6 mou4 kung4
Pinyin yí hài wú qióng

Definitions (CC-CEDICT)
  1. to have disastrous consequences
  2. also written 貽害無窮|贻害无穷[yi2 hai4 wu2 qiong2]