Synonyms|15Antonyms|1|Broader|0Narrower|0Related|8
2
out
1
asleep
1
comatose
1
dead
1
dormant
1
fast asleep
1
oblivious
1
sleeping
1
slumbering
1
unconscious
0
dead to the world
0
lap
0
napping
0
out cold(adverb, unconscious)
0
snoozing
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APASmart Define. (2015). sound asleep thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/sound_asleep/thesaurus/synonyms
ChicagoSmart Define. 2015. "sound asleep thesaurus" https://smartdefine.org/sound_asleep/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, sound asleep thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/sound_asleep/thesaurus/synonyms>.
MLASmart Define. "sound asleep thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/sound_asleep/thesaurus/synonyms>