Read Edit View history 夜不成眠 yèbùchéngmián sleepless Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 夜不成眠 yèbùchéngmián sleepless to be unable to sleep at night 因思念故乡，他常常夜不成眠。 Edit Delete References Add reference No references for this word.