1
as in sick
temporarily suffering from a disorder of the body
an unsound horse that will have to be disqualified from the race
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in unreasonable
not using or following good reasoning
it is clearly unsound to argue that just because a scientific explanation for that phenomenon does not currently exist, no such explanation is possible
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in insane
unable to think in a clear or sensible way
disgruntled relatives tried to prove that the woman was of unsound mind when she made her will
Synonyms & Similar Words
Antonyms & Near Antonyms
4
as in erroneous
not being in agreement with what is true
an unsound and pernicious stereotype
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of unsound
Public health experts say both moves are scientifically unsound and would essentially upend the nation's childhood vaccination regimen, leaving children vulnerable to diseases that had long been brought under control.
—
NPR, 20 Nov. 2025
Under the Fed’s new rules, banks can only be tested for material risks to their businesses or balance sheets, such as bad loans or unsound business practices.
—Christopher Rugaber, Fortune, 19 Nov. 2025
The club very quickly became structurally unsound.
—Chris Weatherspoon, New York Times, 3 Nov. 2025
By 1948, decades of patchwork repairs, design flaws and war damage left the mansion structurally unsound, according to the White House Historical Association.
—Jordan King, MSNBC Newsweek, 24 Oct. 2025
See All Example Sentences for unsound
NPR, 20 Nov. 2025
Under the Fed’s new rules, banks can only be tested for material risks to their businesses or balance sheets, such as bad loans or unsound business practices.
—Christopher Rugaber, Fortune, 19 Nov. 2025
The club very quickly became structurally unsound.
—Chris Weatherspoon, New York Times, 3 Nov. 2025
By 1948, decades of patchwork repairs, design flaws and war damage left the mansion structurally unsound, according to the White House Historical Association.
—Jordan King, MSNBC Newsweek, 24 Oct. 2025
See All Example Sentences for unsound
Recent Examples of Synonyms for unsound
Adjective
-
And the American health care system isn't set up to help people get through it, Mauldin outlines in the book, by way of inaccessible health care, lack of caregiver supports, expensive treatments and an overall de-valuing of sick people and those with disabilities.—
Madeline Mitchell,
USA Today,
9 Feb. 2026
-
In January 2025, a hospital in West Texas began reporting that children were coming in sick with measles.—
Vann R. Newkirk II,
The Atlantic,
9 Feb. 2026
Adjective
-
There are people who desire to drastically improve the health of our ecosystems who unknowingly struggle with unreasonable expectations.—
Chris McKeown,
Cincinnati Enquirer,
14 Feb. 2026
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Amid those pressures, many people turn to the comfort of a pet – but the expectations for what dogs can bring to our lives are becoming increasingly unreasonable.—
Margret Grebowicz,
Fortune,
13 Feb. 2026
Adjective
-
Last week, the wind-power green scam artists were back in federal court, arguing to be permitted to keep squandering billions more on those insane offshore windmills that produce next to no energy, but plenty of pollution.—
Howie Carr,
Boston Herald,
1 Feb. 2026
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That’s the best reaction to these stupid, insane men ruling the world now and trying to grab and dominate the world.—
Georg Szalai,
HollywoodReporter,
31 Jan. 2026
Adjective
-
Congress foolishly downsized that number in the 1980s and ’90s on the erroneous belief that more doctors would encourage unnecessary health care consumption.—
Betsy McCaughey,
Boston Herald,
8 Feb. 2026
-
Civilians misidentified as undercover officers have been chased by anti-ICE mobs in public, even while the victims were going about their daily lives, based on erroneous reporting from fellow ICE monitors.—
Mia Cathell,
The Washington Examiner,
4 Feb. 2026
Adjective
-
This fragmented model creates friction and quietly drains profitability through unbilled hours, margin erosion from poorly staffed projects and elevated turnover when top talent hits operational roadblocks.—
DJ Paoni,
Forbes.com,
10 Sep. 2025
-
For however poorly things are going — and the bad tone set by the starters has leaked into some defensive lapses and some pressing at the plate — the Padres got themselves into a really favorable position before this.—
Kevin Acee,
San Diego Union-Tribune,
4 Sep. 2025
Adjective
-
Away from the irrational exuberance, there are still sensible investments to be made.—
Mikael Johnsson,
Fortune,
6 Feb. 2026
-
The move would be both economically irrational and morally obtuse.—
Ruth Jean-Marie,
Time,
3 Feb. 2026
Adjective
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While Hadari is rebranding as YH Studios, his creative voice remains unchanged, clearly influenced by Browne in his fusion of the sartorial with the slightly psychotic.—
Ari Stark,
Footwear News,
11 Feb. 2026
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At a house party full of caviar, one of the women, while immersed in a motherhood quandary, asks another if there’s something psychotic and untoward in her devouring piles of tiny eggs.—
New York Times,
New York Times,
3 Feb. 2026
Adjective
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If inaccurate or misleading information is introduced to a Wikipedia article, however, it can easily be challenged in the article’s associated discussion page, where edit histories are logged.—
Imogen West-Knights,
The Dial,
10 Feb. 2026
-
Notably, the Fidelity Investments Charitable Gift Fund claimed on its tax forms to have only transferred funds to 501(c)(3) organizations, a statement that critics say appears to be inaccurate given its transfer to the 501(c)(4) Bright Future Fund.—
Robert Schmad,
The Washington Examiner,
10 Feb. 2026
Cite this Entry
“Unsound.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsound. Accessed 17 Feb. 2026.
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