asleep

Universal Words adjective [notbeforenoun] sleeping: The baby was sound asleep (= sleeping deeply) upstairs. * I waited until they were all fast asleep (= sleeping deeply). * He was so exhausted that he fell asleep at his desk. * She was still half asleep (= not fully awake) when she arrived at work. * The police found him asleep in a garage. IDIOMS see SOUNDadv.