INSOMNIA Synonyms: 7 Similar and Opposite Words

insomnia

noun

in-ˈsäm-nē-ə

Definition of insomnia

as in restlessness

the inability to obtain adequate sleep has suffered from insomnia virtually his entire life

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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 Chronic insomnia affects millions of middle-aged and older adults, raising the risk of heart disease, stroke and cognitive decline. — Hanna Wickes, Fort Worth Star-Telegram, 6 Aug. 2026 Researchers enrolled 200 Chinese adults over 50 and randomly assigned them to either tai chi or cognitive behavioral therapy for chronic insomnia. — Hanna Wickes, Sacbee.com, 6 Aug. 2026 The rise of wearables has produced a new problem called orthosomnia, in which anxiety over achieving perfect sleep data actually creates insomnia. — Hanna Wickes, Miami Herald, 5 Aug. 2026 At the time, Monroe was under the constant care of a doctor and a psychiatrist, who had prescribed her numerous medications to treat mental health issues as well as her insomnia. — Alex Gurley, PEOPLE, 4 Aug. 2026 See All Example Sentences for insomnia

Recent Examples of Synonyms for insomnia

Noun

This could, in turn, trigger feelings of restlessness and irritability, not to mention the lack of clarity brought on by the moon transiting this Water sign.

— Valerie Mesa, PEOPLE, 2 Aug. 2026
Standing on opposite sides of the protests, the pair fall for each other despite the divide, recognizing in one another a restlessness neither can quite name.

— Leo Barraclough, Variety, 23 July 2026

Definition of restlessness

Noun

But in people with narcolepsy, such boundaries become blurred, allowing elements of sleep to intrude into wakefulness in varying ways.

— Daryl Austin, USA Today, 8 July 2026
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

Definition of wakefulness

Noun

When a roadside bomb struck his Humvee convoy months later, the explosion’s shock wave swept through his body before headaches and sleeplessness set in for days.

— ABC News, ABC News, 6 Aug. 2026
Within weeks, the pattern looked closer to anxiety than disagreement, including sleeplessness and panic before meetings.

— Expert Panel®, Forbes.com, 27 July 2026

Definition of sleeplessness

Noun

As evening arrives, the body releases melatonin to signal rest while cortisol, the alertness hormone, drops.

— Samantha Agate, Miami Herald, 8 Aug. 2026
The replacement of old, negative patterns of thinking with pure thoughts from God, Love, requires alertness.

— Linda Berckmann, Christian Science Monitor, 3 Aug. 2026

Definition of alertness

Browse Nearby Words

insolvents

insomnia

insomniac

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Style

“Insomnia.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insomnia. Accessed 14 Aug. 2026.

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Synonyms of insomnia

noun

Example Sentences

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