80 entries under adjective topic. ×

3
calm(motionless, quiescence)
3
slow
3
at rest(expression, idiom)
3
becalmed(motionless, quiescence)
3
dead
3
fixed(motionless, quiescence)
3
hibernating(inactive, unconscious, asleep, dormant)
3
idle
3
languid
3
motionless(motionless, quiescence)
3
nodding
3
passive
3
somnolent(quiet, slow, heavy, tired)
3
static
3
stationary(motionless, quiescence)
3
unconscious(out, asleep, dormant, comatose)
3
vegetative(motionless, quiescence)
2
deceased
2
defunct
2
dozing(quiet, unconscious, relaxing, asleep)
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APASmart Define. (2015). sleeping thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sleeping/thesaurus/synonyms
ChicagoSmart Define. 2015. "sleeping thesaurus" https://smartdefine.org/sleeping/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, sleeping thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sleeping/thesaurus/synonyms>.
MLASmart Define. "sleeping thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/sleeping/thesaurus/synonyms>