言之鑿鑿 [－－凿凿]

Jyutping jin4 zi1 zok6 zok6
Pinyin yán zhī záo záo

Definitions (CC-CANTO)
  1. to say something with certainty
Definitions (粵典–words.hk)
  1. 語句
    講​嘢​講到​好​確鑿​，​好似​一定​係​真​咁
    to claim with certainty
    • 個相士言之鐅鐅噉話上年我會有血光之災，而家咪生吽吽企喺度？
      个相士言之鐅鐅噉话上年我会有血光之灾，而家咪生吽吽企喺度？
      The face reader told of a calamity befalling upon me, yet I am still alive.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to say with certainty; to speak on good grounds
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）