废寝忘食 Traditional 廢寢忘食 fèi qǐn wàng shí 🔊 to skip one's sleep and meals HSK 7–9 + Keep this word Meanings fèi qǐn wàng shí 廢寢忘食 (idiom) to skip one's sleep and meals; to be completely wrapped up in one's work Its characters 废fèito abolishHSK 7–9寝qǐnto lie down to sleep or rest忘wàngto forgetHSK 2食shíto eat