不學無術 [－学无术]

Jyutping bat1 hok6 mou4 seot6
Pinyin bù xué wú shù

Definitions (CC-CEDICT)
  1. without learning or skills (idiom); ignorant and incompetent
Definitions (粵典–words.hk)
  1. 形容詞
    冇​學識​又​冇​本事
    neither learned nor talented
    • 大家見到佢有幾不學無術啦。
      大家见到佢有几不学无术啦。
      daai6 gaa1 gin3 dou2 keoi5 jau5 gei2 bat1 hok6 mou4 seot6 laa1.
      Now you guys see how ignorant and incompetent he is.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to be tactless due to the lack of knowledge; without learning or skills; to be not keen on learning anything
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）
Examples (粵典–words.hk)
  1. Cantonese
    大家见到佢有几不学无术啦。
    大家見到佢有幾不學無術啦。
    daai6 gaa1 gin3 dou2 keoi5 jau5 gei2 bat1 hok6 mou4 seot6 laa1.
    • Now you guys see how ignorant and incompetent he is.