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
The money would go to Metro, the physically unsafe and fiscally unsound public transit system that saw its ridership peak in the 1980s.
—
Susan Shelley, Oc Register, 12 Apr. 2025
Democrats dismiss the effort as purely political and legally unsound since the series of court rulings GOP lawmakers are fighting come down to a a disagreement about the law, not high crimes or corruption on the part of judges.
—Deirdre Walsh, NPR, 25 Mar. 2025
One wall in 18-20 Trinity St. — originally built for an insurance company — is structurally unsound.
—Kenneth R. Gosselin, Hartford Courant, 25 Mar. 2025
Constructed in the 1950s with additions from the 1970s, the building was determined to have a structurally unsound central pillar — which the authorities believe to be the cause of the collapse, the Associated Press reported.
—Rachel Raposas, People.com, 11 Mar. 2025
See All Example Sentences for unsound
Susan Shelley, Oc Register, 12 Apr. 2025
Democrats dismiss the effort as purely political and legally unsound since the series of court rulings GOP lawmakers are fighting come down to a a disagreement about the law, not high crimes or corruption on the part of judges.
—Deirdre Walsh, NPR, 25 Mar. 2025
One wall in 18-20 Trinity St. — originally built for an insurance company — is structurally unsound.
—Kenneth R. Gosselin, Hartford Courant, 25 Mar. 2025
Constructed in the 1950s with additions from the 1970s, the building was determined to have a structurally unsound central pillar — which the authorities believe to be the cause of the collapse, the Associated Press reported.
—Rachel Raposas, People.com, 11 Mar. 2025
See All Example Sentences for unsound
Recent Examples of Synonyms for unsound
Adjective
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Desperate to save his sick daughter, working-class Ben Richards (Glen Powell) is convinced by the show’s charming but ruthless producer, Dan Killian (Josh Brolin), to enter the game as a last resort.—
Zac Ntim,
Deadline,
1 July 2025
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Alaska, Michigan, and Maine are among the latest states with paid sick or family leave laws on the books.—
Jim Edwards,
Fortune,
1 July 2025
Adjective
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In making arrests, the federal government allegedly went against both immigration laws and the Fourth Amendment, which protects people from unreasonable searches and seizures by the government, the plaintiffs argue.—
Laura Rodríguez Presa,
Chicago Tribune,
14 July 2025
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Medical device safety alert: issued in situations where a medical device may present an unreasonable risk of substantial harm.—
Marley Malenfant,
Austin American Statesman,
3 July 2025
Adjective
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Amanda learned in like 10 seconds, which is insane.—
Scott Roxborough,
The Hollywood Reporter,
24 Mar. 2025
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If 51% of the population is being so underserved, the ratio to opportunity is insane.—
Gemma Allen,
Forbes,
23 Mar. 2025
Adjective
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In numerous replies and posts, Grok wrote messaged that glorified Adolf Hitler, attached stereotypes to users with Jewish surnames and spread erroneous conspiracy theories about the role of Jewish people in government, commerce and media.—
Jack Dunn,
Variety,
10 July 2025
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Because of erroneous information on the website for the California Commission on Peace Officer Standards and Training (POST), a story published July 6 on Page A1 incorrectly reported that former San Jose police officer George Brown’s police license with the state had been taken off suspension.—
Bay Area News Group,
Mercury News,
9 July 2025
Adjective
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The researchers and their partners are also working to track local residents’ health and to measure how well or poorly interventions like masks and household air filters protected them.—
Maggie Astor,
New York Times,
28 Mar. 2025
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Both the United States and the United Nations have stepped back from leadership roles, a reflection of how poorly interventions in Haiti have gone and also the wide range of issues in other parts of the world at the moment.—
Adam Taylor,
Washington Post,
7 Mar. 2024
Adjective
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So watch for seemingly irrational behavior and erratic tactical moves, as leadership is unafraid to confuse customers and take outsized capital risks.—
Forrester,
Forbes.com,
2 July 2025
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As Reva relates the stories of her three main characters—including one whose true passion is snail conservation—her novel hums with bruised faith in the irrational power of hope, whether for peace, love, endangered species, or familial reconciliation.—
The New Yorker,
New Yorker,
23 June 2025
Adjective
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The counselor also told police Trotman had had a previous psychotic break in which he was found wandering the woods.—
Peter Hermann,
Washington Post,
7 Feb. 2023
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Lewis prescribed Price anti-psychotic medication after a mental health referral Sept. 1.—
Thomas Saccente,
Arkansas Online,
17 Jan. 2023
Adjective
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The Congressional Budget Office estimated the bill would add $3.3 trillion to the national debt over the next decade, though Republican leaders dismissed the projection as inaccurate.—
Kaelan Deese,
The Washington Examiner,
4 July 2025
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And finding those homes proved challenging because many records were missing or inaccurate — some handwritten on notecards dating to the early 1900s.—
Michael Phillis,
Los Angeles Times,
2 July 2025
Cite this Entry
“Unsound.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsound. Accessed 18 Jul. 2025.
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