asleep - definition and synonyms

adjective [never before noun] 

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  1. 1
    not awake

    Are you asleep yet?

    fast/sound/deeply asleep (=sleeping very deeply):

    The children are fast asleep in their rooms.

    half asleep (=not fully awake):

    I groped for the phone, still half asleep.

    fall asleep (=begin to sleep):

    She was so tired she fell asleep sitting in her chair.

  2. 2
    if your foot, hand etc is asleep, it is numb (=you can’t feel it)