龜速 [龟－]

Jyutping gwai1 cuk1
Pinyin guī sù

Definitions (粵典–words.hk)
  1. 副詞、潮語
    比喻​好慢
    slowly
  2. 反義詞
    光速
Definitions (Wiktionary)
  1. adj
    very slow
Examples (粵典–words.hk)
  1. Cantonese
    龟速
    龜速
    • slow as a turtle