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Jyutping sik6 gu2 bat1 faa3
Pinyin shí gǔ bù huà

Definitions (CC-CEDICT)
  1. to swallow ancient learning without digesting it (idiom)
  2. to be pedantic without having a mastery of one's subject
Definitions (粵典–words.hk)
  1. 形容詞
    頑​固守​舊​,​唔​識​變通​或者​接受​新​嘅​事物
    stubborn; way too conservative
    • 李伯咁食古不化, 冇人同佢相處到。
      李伯咁食古不化, 冇人同佢相处到。
      lei5 baak3 gam3 sik6 gu2 bat1 faa3, mou5 jan4 tung4 keoi5 soeng1 cyu5 dou2.
      Old Mr. Lee is so stubborn that no one can get along well with him.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to rigidly adhere to old methods or styles without being flexible
    (syn.) 唔化
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    李伯咁食古不化, 冇人同佢相处到。
    李伯咁食古不化, 冇人同佢相處到。
    lei5 baak3 gam3 sik6 gu2 bat1 faa3, mou5 jan4 tung4 keoi5 soeng1 cyu5 dou2.
    • Old Mr. Lee is so stubborn that no one can get along well with him.