asleep

 
Pronunciation: /əˈsliːp/

adjective & adverb

  • in or into a state of sleep: [as adjective]: she had been asleep for over three hours [as adverb]: he soon fell asleep
  • not attentive or alert; inactive: [as adjective]: the competition was not asleep
  • (of a limb) having no feeling; numb: [as adjective]: his legs were asleep
  • literary used euphemistically to indicate that someone is dead.

Phrases

asleep at the wheel (or North American switch)

informal not attentive or alert: our industry is asleep at the switch