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Jyutping m4 hou2 ji3 tau4
Pinyin wú hǎo yì tóu

Definitions (Wiktionary)
  1. adj, Cantonese
    inauspicious
Definitions (Kaifangcidian)
  1. 不吉利
  2. 壞兆頭 – 坏兆头

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Jyutping m4 hou2 ji3 tau4
Pinyin n2 hǎo yì tóu

Definitions (CC-CANTO)
  1. not good meaning
Examples (粵典–words.hk)
  1. Cantonese
    啲人话乌鸦唔好意头。
    啲人話烏鴉唔好意頭。
    di1 jan4 waa6 wu1 aa1 m4 hou2 ji3 tau4.
    • People said crow brings bad luck.
  2. Cantonese
    阿妈话唔钟意住十四楼,四四声唔好意头㖞!
    阿媽話唔鍾意住十四樓,四四聲唔好意頭喎!
    aa3 maa1 waa6 m4 zung1 ji3 zyu6 sap6 sei3 lau2, sei3 sei3 seng1 m4 hou2 ji3 tau4 wo3!
    • My mum does not like living on 14th floor because the pronunciation of 'four' is similar to that of 'die', which implies bad luck!