唔知死 [－－－]

Jyutping m4 zi1 sei2
Pinyin wú zhī sǐ

Definitions (粵典–words.hk)
  1. 語句
    完全​察覺​唔​到​，​或者​無視​啲​好​危​險​嘅​嘢
    to know no fear; to be oblivious to danger
Definitions (Wiktionary)
  1. verb, Cantonese
    to be excessively negligent; to fail to recognize the seriousness of a situation
Definitions (Kaifangcidian)
  1. 不知天高地厚
  2. 不知道利害
  3. 不懂得事情危急

唔知死 [－－－]

Jyutping m4 zi1 sei2
Pinyin n2 zhī sǐ

Definitions (CC-CANTO)
  1. do not know death, which means somebody is not aware of a potential danger or how serious a situation is
Examples (粵典–words.hk)
  1. Cantonese
    𠮶个阿伯生臌胀都仲喺度饮酒，真系唔知死㗎噃。
    嗰個阿伯生臌脹都仲喺度飲酒，真係唔知死㗎噃。
    go2 go3 aa3 baak3 saang1 gu2 zoeng3 dou1 zung6 hai2 dou6 jam2 zau2, zan1 hai6 m4 zi1 sei2 gaa3 bo3.
    • That guy is still drinking even though his abdomen is swollen from cirrhosis, does he know what risk he is taking?