Definition of insomnianext
as in restlessness
the inability to obtain adequate sleep has suffered from insomnia virtually his entire life

Synonyms & Similar Words

Relevance

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 insomnia Those taking multiple medications were also more likely to be taking benzodiazepine receptor agonists (taken for anxiety or insomnia), laxatives and psychotropic medications (mainly used for depression, anxiety, psychosis and other mood disorders). Melissa Rudy, FOXNews.com, 26 Dec. 2025 Sleep banking should also be avoided by those who struggle with insomnia, Ju said, since lying awake in bed for long periods doesn’t treat your inability to sleep and can lead to even more frustration. Terry Ward, CNN Money, 6 Dec. 2025 Oblique rays of sunshine entered through the studio’s glass ceiling and shone on Samy’s ashy skin, on his face ravaged by insomnia. Literary Hub, 5 Dec. 2025 Our day included brain fog, night sweats, insomnia, frozen shoulder, and rage. Gillian Telling, PEOPLE, 3 Dec. 2025 See All Example Sentences for insomnia
Recent Examples of Synonyms for insomnia
Noun
  • Bowie’s genius was a driver and a result of an unquenchable inner restlessness.
    Armin Rosen, The Washington Examiner, 9 Jan. 2026
  • This is because of the productive restlessness that Safdie fosters in his colleagues, many of whom have been at his side for decades, and, of course, the spirit of his wildly original new character.
    David Canfield, HollywoodReporter, 7 Jan. 2026
Noun
  • Green tea contains caffeine, which can promote wakefulness and alertness.
    Angelica Bottaro, Verywell Health, 7 Jan. 2026
  • This midday slump is a natural dip in wakefulness your body experiences in the mid-afternoon.
    Colleen Murphy, Health, 6 Jan. 2026
Noun
  • Something that becomes more noticeable as time marches on is how easily our faces show any sign of stress, sleeplessness, a bit too much salt, or that glass of wine.
    Kaitlyn Yarborough, Southern Living, 3 Jan. 2026
  • Mayo Clinic listed other potential symptoms, including extreme fatigue, muscle weakness, depression, anxiety, irritability, mood swings, trouble with concentration and memory, headache, sleeplessness, skin darkening and stunted growth in children.
    Angelica Stabile, FOXNews.com, 13 Dec. 2025
Noun
  • The company positions the technology as a support tool for resilience and readiness, especially in roles that demand sustained alertness.
    Aamir Khollam, Interesting Engineering, 9 Jan. 2026
  • Green tea contains caffeine, which can promote wakefulness and alertness.
    Angelica Bottaro, Verywell Health, 7 Jan. 2026

Browse Nearby Words

Cite this Entry

“Insomnia.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insomnia. Accessed 21 Jan. 2026.

More from Merriam-Webster on insomnia

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!