相見恨晚 [－见－－]

Jyutping soeng1 gin3 han6 maan5
Pinyin xiāng jiàn hèn wǎn

Definitions (CC-CEDICT)
  1. to regret not having met earlier (idiom); It is nice to meet you finally.
  2. It feels like we have known each other all along.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to regret not having met earlier; if only we had met earlier (used to express the happiness when meeting with someone for the first time)
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）