INSOMNIAC Synonyms: 40 Similar and Opposite Words

insomniac 1 of 2

adjective

in-ˈsäm-nē-ˌak

Definition of insomniac

as in wakeful

not sleeping or able to sleep an insomniac veteran tormented by his memories of the war

Synonyms & Similar Words

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Antonyms & Near Antonyms

insomniac

2 of 2

noun

as in riser

Related Words

riser
waker

Dissimilar Words

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 insomniac

Adjective

Even an insomniac film critic couldn’t see half of the films playing Fantasia 2025 during the three weeks of the festival. — Scott Phillips, Forbes.com, 6 Aug. 2025 Every night, inhabitants of the city that never sleeps are kept awake by everything from the sounds of slammed front doors reverberating down hallways to insomniac oboists who could use a few more lessons (ideally during the day). — Natalie Wexler, The New Yorker, 25 Sep. 2024

Noun

Early risers and insomniacs alike know an entirely different Kansas City. — Sofi Zeman january 8, Kansas City Star, 8 Jan. 2026 Our editors love the Beckham Hotel Collection Pillows just as much as five-star reviewers—many of whom are insomniacs—do, too. — Stephanie Osmanski, Better Homes & Gardens, 19 May 2026 See All Example Sentences for insomniac

Recent Examples of Synonyms for insomniac

Adjective

Low to medium doses show a reduction in the alpha frequency of brain waves (which correspond to relaxed and wakeful states), along with rising entropy, a signature finding of sober brains sinking deeper into a trip.

— Oshan Jarow, Vox, 4 Nov. 2024
Having the right pillow can make a big difference between a peaceful night’s sleep and a restless, wakeful one.

— Casey Clark, Peoplemag, 9 Sep. 2024

Definition of wakeful

Noun

Torbert has been a steady riser in the recruiting rankings, climbing from the mid-300s earlier this year to his current spot in the top 100.

— Austin Meek, New York Times, 2 July 2026
Turley and Farley recommend shopping at Hobby Lobby for faux vintage finds that have an antique quality despite a discount price, like their favorite frame, riser, candle, and tray.

— Hallie Milstein, Southern Living, 27 June 2026

Definition of riser

Browse Nearby Words

insomnia

insomniac

insomniacs

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Style

“Insomniac.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insomniac. Accessed 8 Jul. 2026.

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Synonyms of insomniac

adjective

noun

Example Sentences

Browse Nearby Words

Cite this Entry

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