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Jyutping taan2
Pinyin kěng

Definitions (Wiktionary)
  1. character, obsolete
    Only used in 忐忑 (kěngdǎo).

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Jyutping taan2
Pinyin tǎn

Definitions (CC-CEDICT)
  1. nervous
Definitions (CC-CANTO)
  1. nervous/timorous/apprehensive
Definitions (Wiktionary)
  1. character
    Only used in 忐忑 (tǎntè).
Definitions (Unihan)
  1. timorous
  2. nervous
  3. Cangjie Input
    YMP
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    虽然有人来了,但是她还是忐忑不安。
    雖然有人來了,但是她還是忐忑不安。
    suī rán yǒu rén lái le , dàn shì tā hái shi tǎn tè bù ān 。
    • Even though someone came, she still remained uneasy.
Examples (粵典–words.hk)
  1. Cantonese
    忐忑不安
    忐忑不安
    • be very upset; be in fidgets; be in a rather nervous state; be on nettles;
  2. Cantonese
    他到家以后,悄悄走上楼,心头有点儿忐忑地进了睡房。
    他到家以後,悄悄走上樓,心頭有點兒忐忑地進了睡房。
    • On his arrival he crept up to his bedroom with somewhat of a palpitating heart .
Examples (Wiktionary)
  1. Mandarin
    忐忑不安
    忐忑不安
    tǎn tè bù ān
    • uneasy