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Jyutping ci1 ngoi4
Pinyin chī dāi

Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. adj
    stupid; dull
    (syn.) 愚笨, 撚樣, 愚鈍, 臭笨, 混钝, 鳩拙, 愚戇, 遲鈍, 阿西, 拙笨, 袋屎袋尿, 鱟, 迟钝, 笨, 撚样, 棒槌, 发踱, 發踱, 愚昧, 笨拙, 笨车车, 愚钝, 呆痴, 混鈍, 拙, 鸠拙, 𡳞面, 袋屎, 蠢气, 海鲎, 呆傻, 笨車車, 𡳞鳥面, 蠢氣, 海鱟, 愚戆, 𡳞鸟面, 愚蠢, 暗昧, 呆
  2. noun
    dementia
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #476
Examples (粵典–words.hk)
  1. Cantonese
    呢班烂仔有书又唔读,最钟意群埋一班人搞搞震,正一痴痴呆呆,坐埋一台。
    呢班爛仔有書又唔讀,最鍾意群埋一班人搞搞震,正一痴痴呆呆,坐埋一枱。
    • These goons like no studying, but group together to harass other students, stupid people form a community of their own.
Examples (Wiktionary)
  1. Mandarin
    她无法用“好”或“坏”来形容你现在的模样,她痴呆的坐在你对面,无谓的盘算如何在回台北之后向亲友描述你沦落的惨状,你从她张大嘴巴里闻到了男人下体味道。
    她无法用“好”或“坏”来形容你现在的模样,她痴呆的坐在你对面,无谓的盘算如何在回台北之后向亲友描述你沦落的惨状,你从她张大嘴巴里闻到了男人下体味道。
    From : 28 August 1991 , kuo cheng 郭箏 , Gods di ce 上帝的骰子 , chi na Times 中國時報
    • She couldn't use the words 'good' or 'bad' to describe what you were like. She sat across from you in a daze, idly speculating how she would describe your miserable, degenerate state to family and friends upon her return to Taipei. From her wide-open mouth you smelled the scent of men's genitals.