A really fast thesaurus... with lots of synonyms.
Fast asleep has 6 synonyms. The top synonyms for fast asleep are asleep, unconscious, out, oblivious, sleeping, slumbering. Another word for fast asleep is asleep. Browse the full list below.
| Length
| Random | DefinitionA common synonym for fast asleep is asleep. Other synonyms include unconscious, out, oblivious, sleeping.
Fast asleep has 6 synonyms listed on Thesaurasize.
(adj): (idiomatic) Sleeping, in a deep sleep.
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