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
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
But Crenshaw dismissed that argument as both self-inflicted and legally unsound.
—Billal Rahman, MSNBC Newsweek, 26 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
At the heart of this problem lies the influence of vocal anti-vaccine rhetoric that is not only scientifically unsound but also profoundly irresponsible.
—Amar Duggirala, Baltimore Sun, 23 Apr. 2025
See All Example Sentences for unsound
Scott A. Rivkees, Time, 6 May 2025
But Crenshaw dismissed that argument as both self-inflicted and legally unsound.
—Billal Rahman, MSNBC Newsweek, 26 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
At the heart of this problem lies the influence of vocal anti-vaccine rhetoric that is not only scientifically unsound but also profoundly irresponsible.
—Amar Duggirala, Baltimore Sun, 23 Apr. 2025
See All Example Sentences for unsound
Recent Examples of Synonyms for unsound
Adjective
-
Prater has a sick fascination with serial killers, collecting their trophies and even inviting the most notorious of them to gatherings at his mansion.—
Tim Lammers,
Forbes.com,
7 Aug. 2025
-
The nerve-rattling new A24 drama from writer-director Mary Bronstein, in theaters Oct. 10, stars Byrne, 46, as Linda — a therapist with mental health struggles, a wife to an absent husband and mother to their sick daughter.—
Jack Smart,
People.com,
6 Aug. 2025
Adjective
-
The policy and specialist support environment is going to need to become more sophisticated, and more responsive to balancing needs and addressing conflict, unfairness and unreasonable requests / restrictions.—
Nancy Doyle,
Forbes.com,
6 Aug. 2025
-
Timothy Mousseau, a biologist at the University of South Carolina who studies organisms and ecosystems in radioactive regions, told the Times that the DOE's explanation that the wasps gathered legacy contamination for their homes is not unreasonable.—
Beth Mole,
ArsTechnica,
4 Aug. 2025
Adjective
-
Amanda learned in like 10 seconds, which is insane.—
Scott Roxborough,
The Hollywood Reporter,
24 Mar. 2025
-
If 51% of the population is being so underserved, the ratio to opportunity is insane.—
Gemma Allen,
Forbes,
23 Mar. 2025
Adjective
-
The examples and notes in question were and are erroneous and inconsistent with our policies, and have been removed.—
Joshua Rhett Miller,
MSNBC Newsweek,
15 Aug. 2025
-
About 60 of those were licensed using the erroneous measurement system, mostly in New York City, plus around another 40 that have licenses but are yet to open their doors.—
Preston Fore,
Fortune,
14 Aug. 2025
Adjective
-
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
-
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
-
Our worries are often dismissed as irrational—planes are much safer than cars, etc.—
Elaine Godfrey,
The Atlantic,
6 Aug. 2025
-
Nothing adds depth to an irascible curmudgeon quite like an irrational love of pets that do not love you back.—
Kathryn VanArendonk,
Vulture,
6 Aug. 2025
Adjective
-
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
-
Lewis prescribed Price anti-psychotic medication after a mental health referral Sept. 1.—
Thomas Saccente,
Arkansas Online,
17 Jan. 2023
Adjective
-
The president has also made inaccurate statements about certain BLS records.—
Isabella Murray,
ABC News,
5 Aug. 2025
-
The White House defended the president’s decision, suggesting the employment numbers and the downward revisions of the past two months were inaccurate.—
David Zimmermann,
The Washington Examiner,
3 Aug. 2025
Cite this Entry
“Unsound.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsound. Accessed 20 Aug. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share