somnolence

noun

ˈsäm-nə-lən(t)s How to pronounce somnolence (audio)
Definition of somnolencenext
as in sleepiness
the quality or state of desiring or needing sleep somnolence is likely to be the most typical and telling reaction to this novel

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of somnolence The company warns of the potential for diarrhea, nausea, headaches, dizziness, and somnolence (excessive or sudden sedation). — Beth Ann Mayer, Parents, 13 Aug. 2023 From there, the story builds on the uncertainty, rocking the somnolence of a small town in the province of Badajoz, and forcing a community to choose between disbelief and the need to prove what can’t be seen. — Emiliano De Pablos, Variety, 9 Feb. 2026 More little dramas are unfolding across South Korean boardrooms as activist investors become more assertive after a long period of somnolence. — Jacky Wong, WSJ, 28 Mar. 2023 The people went to the emergency department with tachycardia, confusion, anxiety or somnolence, and nausea after eating gummy candies labeled as containing Amanita muscaria mushrooms. — Beth Mole, Ars Technica, 19 July 2024 See All Example Sentences for somnolence
Recent Examples of Synonyms for somnolence
  1. sleepiness
  2. drowsiness
  3. fatigue
  4. sleeping
Noun
  • The clinical data demonstrated significant improvements in wakefulness and reductions in excessive daytime sleepiness at week eight, outperforming the placebo with a generally favorable safety profile.
    — Sasirekha Subramanian, Forbes.com, 29 June 2026
  • In the study, people who reported excessive daytime sleepiness had higher odds of hypertension than those who didn’t.
    — Zoe Cunniffe, Health, 18 June 2026
Definition of sleepiness
Noun
  • Some symptoms of diphenhydramine poisoning include drowsiness, agitation, fast heart rate, nausea, vomiting, hallucinations, seizures, dangerous heart rhythm and loss of consciousness.
    — Angelica Stabile, FOXNews.com, 19 June 2026
  • It is also known to cause side effects, including drowsiness, sedation and dizziness.
    — Mary Walrath-Holdridge, USA Today, 12 June 2026
Definition of drowsiness
Noun
  • In an interview with Mental Floss, competitive eater Yasir Salem discusses how speed eaters will chew gum to strengthen their jaws to avoid fatigue during competitions.
    — Jennifer Borresen, USA Today, 3 July 2026
  • Fifty years later, his military haircut glistens with silver from a lifetime serving in fatigues.
    — Danya Gainor, CNN Money, 3 July 2026
Definition of fatigue
Noun
  • The floorplan is arranged with a clear separation between the living areas and private sleeping quarters of the home.
    — Bridget Borgobello July 03, New Atlas, 4 July 2026
  • Fourth of July Camping Deals With markdowns on functional tents, sleeping bags, and rechargeable lanterns, there’s no better time to snag camping essentials.
    — Destinee Scott, Travel + Leisure, 3 July 2026
Definition of sleeping

Browse Nearby Words

somniferous
somnolence
somnolent
See all Nearby Words

Cite this Entry

“Somnolence.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/somnolence. Accessed 7 Jul. 2026.

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More from Merriam-Webster on somnolence

Nglish: Translation of somnolence for Spanish Speakers

Britannica.com: Encyclopedia article about somnolence

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