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Jyutping daai6 bat1 liu5
Pinyin dà bu liǎo ( toneless variant )

Definitions (Wiktionary)
  1. adj
    serious
  2. adv
    at worst; worse comes to worst

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Jyutping daai6 bat1 liu5
Pinyin dà bù liǎo

Definitions (CC-CEDICT)
  1. at worst; if worst comes to worst
  2. (usu. in the negative) serious; alarming
Definitions (粵典–words.hk)
  1. 副詞
    形容​最​壞​嘅​情​況​都​可以​接受
    usually used to suggest the most unpleasant way that one could do if the worst comes to the worst
    • 大不了我哋咪行返屋企。
      大不了我哋咪行返屋企。
      daai6 bat1 liu5 ngo5 dei6 mai6 haang4 faan1 uk1 kei2.
      If the worst comes to the worst, we can walk back home.
  2. 形容詞
    即​係​嚴重​;​通常​用​喺​否定​或者​反​問​嘅​形式
    alarming; serious; usually used in negation or rhetoric questions
    • 瘀咗小小啫,冇咩大不了。
      瘀咗小小啫,冇咩大不了。
      jyu2 zo2 siu2 siu2 ze1, mou5 me1 daai6 bat1 liu5.
      It's nothing serious, just a bruise.
Definitions (Wiktionary)
  1. adj
    serious
  2. adv
    at worst; worse comes to worst
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (Tatoeba—Cantonese-English)
  1. Cantonese
    大不了咪辞咗份工佢啰。
    大不了咪辭咗份工佢囉。
    daai6 bat1 liu5 mi1 ci4 zo2 fan6 gung1 keoi5 lo1 。
    • You can always quit the job.
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    这没什么大不了的。
    這沒什麼大不了的。
    zhè méi shén me dà bù liǎo de 。
    • It's no big deal.
    • It's no big thing.
  2. Mandarin
    如果你想去,就去好了。如果你不想去,那也没什么大不了的。
    如果你想去,就去好了。如果你不想去,那也沒什麼大不了的。
    rú guǒ nǐ xiǎng qù , jiù qù hǎo le 。 rú guǒ nǐ bù xiǎng qù , nà yě méi shén me dà bù liǎo de 。
    • If you want to go, then go. If you don't want to, then it's no big deal.
  3. Mandarin
    那没什么大不了的。
    那沒什麼大不了的。
    nà méi shén me dà bù liǎo de 。
    • That's no big deal.
Examples (粵典–words.hk)
  1. Cantonese
    大不了我哋咪行返屋企。
    大不了我哋咪行返屋企。
    daai6 bat1 liu5 ngo5 dei6 mai6 haang4 faan1 uk1 kei2.
    • If the worst comes to the worst, we can walk back home.
  2. Cantonese
    瘀咗小小啫,冇咩大不了。
    瘀咗小小啫,冇咩大不了。
    jyu2 zo2 siu2 siu2 ze1, mou5 me1 daai6 bat1 liu5.
    • It's nothing serious, just a bruise.