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
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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
But Crenshaw dismissed that argument as both self-inflicted and legally unsound.
—
Billal Rahman, MSNBC Newsweek, 26 June 2025
But don’t get too attached to any of these morally unsound characters, since all are mere bait for this killer.
—Randy Myers, Mercury News, 20 June 2025
The approach that the Great Barrington Declaration laid out was, at the time, widely denounced by public-health experts, including the World Health Organization and then–NIH director Francis Collins, as dangerous and scientifically unsound.
—Katherine J. Wu, The Atlantic, 9 June 2025
And now, the scientifically unsound political campaign against water fluoridation is another example of an anti-pediatric fringe initiative to dismantle a public health success.
—Scott A. Rivkees, Time, 6 May 2025
See All Example Sentences for unsound
Billal Rahman, MSNBC Newsweek, 26 June 2025
But don’t get too attached to any of these morally unsound characters, since all are mere bait for this killer.
—Randy Myers, Mercury News, 20 June 2025
The approach that the Great Barrington Declaration laid out was, at the time, widely denounced by public-health experts, including the World Health Organization and then–NIH director Francis Collins, as dangerous and scientifically unsound.
—Katherine J. Wu, The Atlantic, 9 June 2025
And now, the scientifically unsound political campaign against water fluoridation is another example of an anti-pediatric fringe initiative to dismantle a public health success.
—Scott A. Rivkees, Time, 6 May 2025
See All Example Sentences for unsound
Recent Examples of Synonyms for unsound
Adjective
-
Only sea stars injected with Vibrio pectenicida, or with material from sick sea stars, showed signs of disease.—
JSTOR Daily,
JSTOR Daily,
17 Oct. 2025
-
The Aquarium’s Rescue and Rehabilitation team also spends several months every year caring for sick and injured green sea turtles at its Sea Turtle Hospital in Quincy, Massachusetts.—
Laura Baisas,
Popular Science,
16 Oct. 2025
Adjective
-
Many of our technologies are built on the not-unreasonable assumption that openness is good, and that more common knowledge is better.—
Joshua Rothman,
New Yorker,
14 Oct. 2025
-
Each side of the issue argues that the other is unreasonable and operating in bad faith.—
Taylor Seely,
AZCentral.com,
9 Oct. 2025
Adjective
-
The outpouring of people on social media was insane.—
Wendy Grossman Kantor,
PEOPLE,
17 Oct. 2025
-
The trailer teases spicy fights, insane games, and twists.—
Tomás Mier,
Rolling Stone,
16 Oct. 2025
Adjective
-
Some were hastily informed that their firings were erroneous, but the experience rattled the CDC, an agency tasked with overseeing the national response to seasonal respiratory illnesses at a time when those illnesses typically spike.—
Michael Hiltzik,
Twin Cities,
16 Oct. 2025
-
An art review on Friday about two Lu Yang exhibits in New York attributed an erroneous distinction to Lu Yang’s current exhibition at the Museum of the Moving Image.—
New York Times,
New York Times,
15 Oct. 2025
Adjective
-
This involves having a poorly or non-functioning colon and is not usually reversible.—
Dr. John De Jong,
Boston Herald,
17 Aug. 2025
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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
Adjective
-
Poetry brings hope, not an irrational optimism or wishful thinking, but a positive orientation to the future, of what a better, healthier future would look like.—
K.J.S. “Sunny” Anand,
Time,
15 Oct. 2025
-
Marks believes that investor optimism doesn’t automatically signal irrational exuberance.—
Yun Li,
CNBC,
13 Oct. 2025
Adjective
-
Norman Mailer achieved a similar thing in his non-fiction novel about Gary Gilmore The Executioner’s Song—although, by the time the book was published in 1979, the seedy, psychotic world of Gilmore and his two girlfriends, Nicole and April Baker, hardly came as a revelation.—
Literary Hub,
Literary Hub,
16 Oct. 2025
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Since its introduction in 2022, only people with schizophrenia and other limited psychotic disorders have had access to the program.—
CalMatters,
Oc Register,
16 Oct. 2025
Adjective
-
The Big 12 did not clarify which part of Leipold's statement was inaccurate.—
Ryan Morik,
FOXNews.com,
15 Oct. 2025
-
But Johnson and other GOP leaders have repeatedly said Democrats want to extend Affordable Care Act and Medicaid benefits to countless undocumented immigrants, which is inaccurate.—
Zachary Schermele,
USA Today,
9 Oct. 2025
Cite this Entry
“Unsound.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsound. Accessed 21 Oct. 2025.
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