- Definitions|2
- Thesaurus|474
- Abbreviations|0
| slack(dull, idle, sluggish, lazy, inactive) | |
| sleep-drowned | |
| sleep-drunk | |
| sleep-filled | |
| sleep-swollen | |
| sleepyhead(adjective, dull, quiet, slow, relaxed) | |
| slow-moving(adjective, dull, idle, sluggish, lazy) | |
| slumbersome | |
| snoozing(adjective, tired, unconscious, sleepy, dormant) | |
| snoring(adjective, unconscious, dormant, comatose, sleeping) | |
| somnolence | |
| spiritless(adjective, dull, relaxed, weary, apathetic) | |
| stable(adjective, dull, idle, sluggish, lazy) | |
| stagnant | |
| stagnating | |
| static(adjective, dull, idle, apathetic, sluggish) | |
| stationary(adjective, motionless, unmoving) | |
| stolid(adjective, dull, weary, apathetic, tired) | |
| stultified | |
| stupefied(adjective, dull, cold, stupid, idle) |
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| APA | Smart Define. (2015). somnolent thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/somnolent/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "somnolent thesaurus" https://smartdefine.org/somnolent/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, somnolent thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/somnolent/thesaurus/synonyms>. |
| MLA | Smart Define. "somnolent thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/somnolent/thesaurus/synonyms> |