Fast asleep and In a sound sleep

Related terms

Fast asleep

Fast asleep adjective - Sleeping deeply.

Show all Definitions

In a sound sleep and fast asleep are semantically related. In some cases you can replace phrase "In a sound sleep" with "Fast asleep", this phrases are similar.

In a sound sleep

Definitions of Fast asleep not found.

Synonyms for In a sound sleep

Fast asleep and in a sound sleep are semantically related. Sometimes you can replace phrase "Fast asleep" with "In a sound sleep", this phrases are similar.

Mutual synonyms

dead
dormant
unconscious
comatose
oblivious
sound asleep
dead to the world
dead asleep
sound as a top
deep asleep

Cite this Source

In a sound sleep and Fast asleep. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/fast_asleep/in_a_sound_sleep

Fast asleep & In a sound sleep. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/fast_asleep/in_a_sound_sleep>.

In a sound sleep or Fast asleep. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/fast_asleep/in_a_sound_sleep.