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Jyutping fong1 tong4
Pinyin huāng tang

Definitions (Wiktionary)
  1. adj
    dissipated; loose; unrestrained; indulgent
  2. adj, obsolete
    fantastical; imaginary; fanciful
  3. adj, obsolete
    vast; boundless
  4. adj
    absurd; ridiculous; preposterous

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Jyutping fong1 tong4
Pinyin huāng táng

Definitions (CC-CEDICT)
  1. beyond belief
  2. preposterous
  3. absurd
  4. intemperate
  5. dissipated
Definitions (粵典–words.hk)
  1. 形容詞
    形容​事件​可笑​,​冇​可能​發生
    absurd; laughable;ridiculous
    • 明明冇落雨擔乜嘢遮啫,真係荒唐。
      明明冇落雨担乜嘢遮啫,真系荒唐。
      ming4 ming4 mou5 lok6 jyu5 daam1 mat1 ze1 zek1, zan1 hai6 fong1 tong4.
      Why do you hold an umbrella when there is no rain? It's ridiculous.
Definitions (Wiktionary)
  1. adj, obsolete
    vast; boundless
  2. adj, obsolete
    fantastical; imaginary; fanciful
  3. adj
    absurd; ridiculous; preposterous
  4. adj
    dissipated; loose; unrestrained; indulgent
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    您这么做很荒唐。
    您這麼做很荒唐。
    nín zhè me zuò hěn huāng táng 。
    • It's absurd of you to do that.
    • It is absurd of you to do that.
  2. Mandarin
    这一切在我看来都颇为荒唐。
    這一切在我看來都頗為荒唐。
    zhè yī qiè zài wǒ kàn lái dōu pō wéi huāng táng 。
    • I think that this is all quite absurd.
  3. Mandarin
    多么荒唐的故事!
    多麼荒唐的故事!
    duō me huāng táng de gù shì !
    • What a bizarre story!
    • What a bizarre tale!
  4. Mandarin
    你就是荒唐。
    你就是荒唐。
    nǐ jiù shì huāng táng 。
    • You're just being ridiculous.
Examples (粵典–words.hk)
  1. Cantonese
    明明冇落雨担乜嘢遮啫,真系荒唐。
    明明冇落雨擔乜嘢遮啫,真係荒唐。
    ming4 ming4 mou5 lok6 jyu5 daam1 mat1 ze1 zek1, zan1 hai6 fong1 tong4.
    • Why do you hold an umbrella when there is no rain? It's ridiculous.