風中燭

Simplified: 风中烛

fēngzhōngzhú ㄈㄥ ㄓㄨㄥ ㄓㄨˊ

    • person who may die at any time
    • someone on their last legs

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
candle in the wind
Meaning
Someone, usually seriously ill or very old, who may die at any time. Close to "on one's last legs."

Sources