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Jyutping ngaang6 gwat6 gwat6
Pinyin yìng jué jué

Definitions (Wiktionary)
  1. adj, Cantonese, ideophonic
    very hard; very stiff
    (syn.) 硬梆梆

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Jyutping ngaang6 gwang6 gwang6
Pinyin yìng jué jué

Definitions (粵典–words.hk)
  1. 形容詞
    非常​硬
    very hard
    • 個枕頭硬摑摑好難瞓。
      个枕头硬掴掴好难瞓。
      go3 zam2 tau4 ngaang6 gwak6 gwak6 hou2 naan4 fan3.
      It's uncomfortable to sleep on a hard pillow.
    • 個菠蘿包硬掘掘食到口都損埋
      个菠萝包硬掘掘食到口都损埋
      go3 bo1 lo4 baau1 ngaang6 gwak6 gwak6 sik6 dou3 hau2 dou1 syun2 maai4.
      The pineapple bun is so hard that it hurts my mouth.
  2. 參看
    硬摑摑、硬倔倔

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Jyutping ngaang6 gwak6 gwak6
Pinyin yìng jué jué

Definitions (CC-CANTO)
  1. very hard [colloquial]
Definitions (粵典–words.hk)
  1. 形容詞
    非常​硬
    very hard
    • 個枕頭硬摑摑好難瞓。
      个枕头硬掴掴好难瞓。
      go3 zam2 tau4 ngaang6 gwak6 gwak6 hou2 naan4 fan3.
      It's uncomfortable to sleep on a hard pillow.
    • 個菠蘿包硬掘掘食到口都損埋
      个菠萝包硬掘掘食到口都损埋
      go3 bo1 lo4 baau1 ngaang6 gwak6 gwak6 sik6 dou3 hau2 dou1 syun2 maai4.
      The pineapple bun is so hard that it hurts my mouth.
  2. 參看
    硬摑摑、硬倔倔
Examples (粵典–words.hk)
  1. Cantonese
    个菠萝包硬掘掘食到口都损埋
    個菠蘿包硬掘掘食到口都損埋
    go3 bo1 lo4 baau1 ngaang6 gwak6 gwak6 sik6 dou3 hau2 dou1 syun2 maai4.
    • The pineapple bun is so hard that it hurts my mouth.