asleep ˈsliːp/ adjective
Learner's definition of ASLEEP
not used before a noun
: in a state of sleep : sleeping
◊ When people are fast asleep or sound asleep, they are sleeping very deeply.
◊ If you are half asleep, you are very tired and not completely awake.
: lacking any feeling
◊ If a part of your body (such as a foot or leg) is asleep, it is not able to feel anything for a brief time, usually because you have kept it in an awkward position for too long.

fall asleep

: to begin sleeping
Comments & Questions
Comments & Questions
What made you want to look up asleep? Include any comments and questions you have about this word.