Word: 废寝忘食 (fèiqǐnwàngshí) Traditional: 廢寢忘食 废寝忘食 dictionary entry fèiqǐnwàngshí to skip one's sleep and meals Full dictionary entry for 废寝忘食 Example sentences using 废寝忘食 2 sentences, showing page 1 of 1. 他废寝忘食地准备考试。 Tā fèiqǐnwàngshí de zhǔnbèi kǎoshì. He is forgetting sleep and food to prepare for the exam. 她写小说写得废寝忘食。 Tā xiě xiǎoshuō xiě de fèiqǐnwàngshí. She is so wrapped up in writing her novel that she forgets to sleep or eat.