頑症 [顽－]

Jyutping waan4 zing3
Pinyin wán zhèng

Definitions (CC-CEDICT)
  1. stubborn illness
  2. disease that is difficult to treat
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. noun
    stubborn illness, disease that is difficult to treat
  2. noun
    persistent (social) issue