| sedentary | |
| sleeper(noun, vehicle) | |
| somnolent(adjective, quiet, slow, heavy, tired) | |
| static(adjective, motionless) | |
| stationary(adjective, motionless, quiescence) | |
| unconscious(adjective, out, asleep, dormant, comatose) | |
| vegetative(adjective, motionless, quiescence) | |
| silent | |
| abed | |
| dead asleep(expression, idiom, inactivity) | |
| deceased | |
| defunct | |
| dozing(adjective, quiet, unconscious, relaxing, asleep) | |
| draggy(adjective, dull, quiet, slow, heavy) | |
| dreaming(adjective, quiet, unconscious, relaxing, asleep) | |
| heavy | |
| hidden | |
| immobile(adjective, motionless) | |
| in abeyance(expression, idiom) | |
| lethargic |
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| APA | Smart Define. (2015). sleeping thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/sleeping/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "sleeping thesaurus" https://smartdefine.org/sleeping/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, sleeping thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/sleeping/thesaurus/synonyms>. |
| MLA | Smart Define. "sleeping thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/sleeping/thesaurus/synonyms> |