Definitions
There is 1 meaning of the phrase
Fast Asleep.
Fast Asleep - as an adjective satellite
Example Sentences
"She fell fast asleep as soon as her head hit the pillow."
"The baby was fast asleep in her crib."
"The sound of the rain put me into a fast asleep state."
"After a long day of work, he was fast asleep within minutes."
"The dog curled up on the couch and was soon fast asleep."