彻夜不眠

Traditional form:

徹夜不眠

Pinyin (reading):

chèyèbùmián

Definitions:

• to be sleepless all night

Characters:

• 彻 - penetrating, pervasive; to penetrate, to pass through
• 夜 - night, dark; under cover of night
• 不 - no, not, un-; negative prefix
• 眠 - sleep, shut-eye, hibernatation

Traditional characters:

• 徹 - penetrating, pervasive; to penetrate, to pass through
• 夜 - night, dark; under cover of night
• 不 - no, not, un-; negative prefix
• 眠 - sleep, shut-eye, hibernatation