睡眠不足 shuì mián bù zú

DEFINITIONS

  1. lack of sleep
  2. sleep deficit

CHARACTERS

睡 shuì
HSK 1
sleep, doze
眠 mián
HSK 5
close eyes, sleep; hibernate
不 bù
HSK 1
no, not; un-; negative prefix
足 zú
HSK 2
foot; attain, satisfy, enough