冇口齒 [－－齿]

Jyutping mou4 hau2 ci2
Pinyin mǎo kǒu chǐ

Definitions (粵典–words.hk)
  1. 形容詞
    信​唔​過​；​言​而​無信
    (literally) no mouth teeth; unreliable; non-trustworthy; unfaithful
    • 你講過唔算數，冇口齒！
      你讲过唔算数，冇口齿！
      nei5 gong2 gwo3 m4 syun3 sou3, mou5 hau2 ci2!
      You didn't keep your word, how unfaithful you are!
  2. 反義詞
    有口齒

冇口齒 [－－齿]

Jyutping mou5 hau2 ci2
Pinyin mǎo kǒu chǐ

Definitions (CC-CANTO)
  1. (adjective) not trustworthy; (slang) to describe someone who breaks a promise
Definitions (Wiktionary)
  1. verb, Cantonese
    to not keep promises; to not keep one's word
Definitions (Kaifangcidian)
  1. 沒有信用 – 没有信用
  2. 說話不算數 – 说话不算数
Examples (粵典–words.hk)
  1. Cantonese
    先唔好话你咁冇口齿，就算你有，我都信你唔过。
    先唔好話你咁冇口齒，就算你有，我都信你唔過。
    sin1 m4 hou2 waa6 nei5 gam3 mou5 hau2 ci2, zau6 syun3 nei5 jau5, ngo5 dou1 seon3 nei5 m4 gwo3.
    • Regardless of your lack of trustworthiness, even you keep your word, I can't trust you.
  2. Cantonese
    你讲过唔算数，冇口齿！
    你講過唔算數，冇口齒！
    nei5 gong2 gwo3 m4 syun3 sou3, mou5 hau2 ci2!
    • You didn't keep your word, how unfaithful you are!