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Jyutping ngau4 zing1
Pinyin niú jīng

Definitions (CC-CANTO)
  1. (adjective) mean and unreasonable; rude and bad-tempered; stubborn
Definitions (粵典–words.hk)
  1. 形容詞
    唔​講​道理​;​野蠻​;​蝦​蝦​霸霸
    ill-tempered; stubborn; to behave like a bully
Definitions (Kaifangcidian)
  1. 蠻橫 – 蛮横
  2. 野蠻 – 野蛮
  3. 不馴服 – 不驯服
  4. 牛皮氣 – 牛皮气
  5. 難調教 – 难调教
  6. 蠻不講理 – 蛮不讲理