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
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 unsound
But on closer look, the table also shows that any such relationship disappears at higher doses of aluminum—a quirky finding that should make the whole idea appear unsound.
—
Benjamin Mazer, The Atlantic, 21 Nov. 2025
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
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
Benjamin Mazer, The Atlantic, 21 Nov. 2025
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
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
-
As the harried solo parent of a sick child, Byrne lets the camera zoom in so close to her character’s insecurities that the audience breaks out in a cold sweat.—
Amy Nicholson,
Los Angeles Times,
10 Mar. 2026
-
Threats to the environment and wildlife are still ever-present — a new highly pathogenic avian influenza has just hit the state, McGuire said, making birds and now elephant seals in Northern California sick.—
Laylan Connelly,
Oc Register,
9 Mar. 2026
Adjective
-
Pittman said the defense would not be able to show based on the evidence that Gross’ actions before he was shot were unreasonable.—
Emerson Clarridge
Updated March 5,
Fort Worth Star-Telegram,
5 Mar. 2026
-
Breuer listed two city inspectors by name, accusing them of providing unreasonable timelines, intentionally ignoring information provided by Berrada and its right to the appeal, and for entering the property and interfering with repair work.—
Drake Bentley,
jsonline.com,
5 Mar. 2026
Adjective
-
If he was convicted, a jury would then have to decide whether Abril was insane when the park shooting occurred.—
Rosalio Ahumada,
Sacbee.com,
4 Mar. 2026
-
Like, dude, the views from the top are insane.—
Outside Online,
Outside Online,
4 Mar. 2026
Adjective
-
This story has been updated to correct erroneous information originally released by the city of Radcliff.—
Leo Bertucci,
Louisville Courier Journal,
3 Mar. 2026
-
This was due to erroneous data provided by Dallas County, the Texas Secretary of State’s office told Hearst Newspapers.—
Bayliss Wagner,
Austin American Statesman,
3 Mar. 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
-
Photograph from Metropolitan Nashville Police Department / AP The pair would stay up late talking at Marone’s house, and when Friedmann got really candid something irrational and thrilling in him emerged.—
James Verini,
New Yorker,
2 Mar. 2026
-
But feeling appreciated for kind gestures and hoping that invitations will be reciprocated is not a new, unusual or irrational problem.—
Judith Martin,
Dallas Morning News,
28 Feb. 2026
Adjective
-
In schizophrenia, one type of psychotic disorder, exercise is believed to be neuroprotective, tamping down inflammation in the brain and spurring the release of chemicals that support and maintain brain cell growth.—
Miriam Fauzia,
Dallas Morning News,
6 Mar. 2026
-
However, a person must meet seven criteria to be eligible, including a diagnosis of schizophrenia or another psychotic disorder at a severe level.—
Grant Stringer,
Mercury News,
2 Mar. 2026
Adjective
-
Consider credit repair Credit repair companies contact the three main credit bureaus, Equifax, Experian and TransUnion, and attempt to have inaccurate or outdated negative marks removed from your credit reports.—
Ryley Amond,
CNBC,
3 Mar. 2026
-
Elser, who fought the package theft accusation, was caught in an impersonal — and inaccurate — technology dragnet.—
Seth Klamann,
Denver Post,
2 Mar. 2026
Cite this Entry
“Unsound.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsound. Accessed 10 Mar. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
