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Jyutping mou4 sam1 caap3 lau5 lau5 sing4 jam3
Pinyin wú xīn chā liǔ liǔ chéng yīn

Definitions (粵典–words.hk)
  1. 語句
    無意​間​嘅​舉​動​,​竟然​產生​意想不到​嘅​結​果​;​有時​亦​都​會​喺​「​有心​栽花​花不開​」​後​面​做​配搭
    to have unexpected results that one did not intend for; a watched flower never blooms, but an untended willow grows
  2. 近義詞
    無心插柳

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Jyutping mou4 sam1 caap3 lau5 lau5 sing4 jam3
Pinyin wú xīn chā liǔ liǔ chéng yìn

Definitions (CC-CANTO)
  1. to reap unexpected rewards from an one's unintentional actions
Definitions (Wiktionary)
  1. phrase, idiomatic
    to do something which unintentionally returns positive results
Examples (粵典–words.hk)
  1. Cantonese
    有心栽花花不香,无心插柳柳成荫。
    有心栽花花不香,無心插柳柳成蔭。
    jau2 sam1 zoi1 faa1 faa1 bat1 hoeng1, mou4 sam1 cap3 lau5 lau5 sing4 jam3
    • Flowers carefully planted did not bloom fragrant; the willow branch carelessly buried grew to become a shade.