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Jyutping bat1 gu3 jat1 cai3
Pinyin bù gù yī qiè

Definitions (CC-CEDICT)
  1. to disregard all negative considerations; to cast aside all concerns
Definitions (粵典–words.hk)
  1. 語句
    唔​考慮​事情​嘅​狀​況​同​後​果​,​就​去​做​一件​事
    regardless of the cost
    • 雖然屋企人都一致反對嘅決定,但佢都係不顧一切投筆從戎。
      虽然屋企人都一致反对嘅决定,但佢都系不顾一切投笔从戎。
      He picked up the sword instead of pen regardless of the unanimous protest from his family.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to disregard everything; regardless of everything
  2. phrase, especially, idiomatic
    without regard to consequences; throw caution to the wind; desperate; reckless
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    虽然屋企人都一致反对嘅决定,但佢都系不顾一切投笔从戎。
    雖然屋企人都一致反對嘅決定,但佢都係不顧一切投筆從戎。
    • He picked up the sword instead of pen regardless of the unanimous protest from his family.