Synonyms|17Antonyms|0|Broader|0Narrower|0Related|8

4 entries under slumbering topic. ×

3
out(adjective, sleeping, snoozing)
2
sleeping(adjective, asleep, snoozing)
2
sound asleep(expression, adjective, asleep, sleeping)
1
dead to the world(expression, adjective, idiom, asleep, sleeping)
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APASmart Define. (2015). fast asleep thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/fast_asleep/thesaurus/synonyms
ChicagoSmart Define. 2015. "fast asleep thesaurus" https://smartdefine.org/fast_asleep/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, fast asleep thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/fast_asleep/thesaurus/synonyms>.
MLASmart Define. "fast asleep thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/fast_asleep/thesaurus/synonyms>