80 entries under adjective topic. ×
| out like a light(expression, idiom, awareness, unconscious) | |
| out of it(expression, idiom, quiet, slow) | |
| sacked out(expression, unconscious, concentrated, dormant) | |
| slumbersome(dull, quiet, slow, heavy) | |
| snoozing(quiet, unconscious, relaxing, asleep) | |
| snoring(unconscious, dormant, comatose, slumbering) | |
| soporific(dull, quiet, slow, heavy) | |
| taking forty winks(expression, idiom, unconscious, dormant) | |
| tranquil | |
| unawake | |
| yawning(dull, quiet, slow, heavy) | |
| dead to the world(idiom, awareness) | |
| fast asleep(idiom, awareness) | |
| in a sound sleep(idiom, awareness) | |
| numb | |
| sleeping like a log(expression, idiom) | |
| somnifacient | |
| somnific | |
| tired(dull, quiet, lethargic, sleepy) | |
| undeveloped |
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| APA | Smart Define. (2015). sleeping thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sleeping/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "sleeping thesaurus" https://smartdefine.org/sleeping/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, sleeping thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sleeping/thesaurus/synonyms>. |
| MLA | Smart Define. "sleeping thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/sleeping/thesaurus/synonyms> |