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Jyutping lou5 deon6
Pinyin lǔ dùn

Definitions (CC-CEDICT)
  1. stupid
  2. slow on the uptake
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    鲁钝
    魯鈍
    • obtuse