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
Firefighters went to the pier, which was closed in late 2024 after it was deemed structurally unsound, and found a section smoldering underneath.
—
David Hernandez, San Francisco Chronicle, 1 Mar. 2026
Analysts and economists responded throughout the week that the economics implied by Citrini’s argument were unsound, but on Thursday, Twitter co-founder and current Block CEO Jack Dorsey stunned the market by announcing a massive 40% downsizing of his company’s ranks.
—Nick Lichtenberg, Fortune, 28 Feb. 2026
Colton was wrong, but his process wasn’t altogether unsound.
—Joe Reid, Vulture, 16 Jan. 2026
The Badgers ran for 209 yards and three scores against the Illini, while an unsound Gophers defense gave up 220 and two TDs to the Wildcats.
—Andy Greder, Twin Cities, 28 Nov. 2025
See All Example Sentences for unsound
David Hernandez, San Francisco Chronicle, 1 Mar. 2026
Analysts and economists responded throughout the week that the economics implied by Citrini’s argument were unsound, but on Thursday, Twitter co-founder and current Block CEO Jack Dorsey stunned the market by announcing a massive 40% downsizing of his company’s ranks.
—Nick Lichtenberg, Fortune, 28 Feb. 2026
Colton was wrong, but his process wasn’t altogether unsound.
—Joe Reid, Vulture, 16 Jan. 2026
The Badgers ran for 209 yards and three scores against the Illini, while an unsound Gophers defense gave up 220 and two TDs to the Wildcats.
—Andy Greder, Twin Cities, 28 Nov. 2025
See All Example Sentences for unsound
Recent Examples of Synonyms for unsound
Adjective
-
The vlogger Jordan Cheyenne, for one, wrecked her sharenting career by accidentally posting footage of herself coaching her son, who was distraught over the family’s sick puppy, to make a specific kind of sad face for YouTube.—
Jessica Winter,
New Yorker,
7 Apr. 2026
-
People without health insurance tend to seek less preventative treatment, become sick more frequently, and die younger than do people with insurance.—
Andre Mouchard,
Oc Register,
4 Apr. 2026
Adjective
-
Chicago residents must not be subject to unreasonable searches and seizures.—
Tracy Baim,
Chicago Tribune,
29 Mar. 2026
-
As in Williams’ case, attorneys argued that a sweep had violated the plaintiffs’ Fourth Amendment rights protecting them from unreasonable search and seizure, as well as their 14th Amendment right to due process.—
Ariane Lange,
Sacbee.com,
24 Mar. 2026
Adjective
-
This is not your $65,000-a-year job, someone who’s a janitor and is trying to talk in a school board meeting who really could lose his job for this opinion, which is insane.—
Ryan Morik,
FOXNews.com,
2 Apr. 2026
-
Three years after Steven Yeun and Ali Wong captured the attention of viewers eager to see the culmination of their characters' insane road rage fight, the drama series is back, this time focusing on two couples with a new kind of beef.—
Madeleine Janz,
PEOPLE,
1 Apr. 2026
Adjective
-
But those who in the nineteenth and twentieth centuries made erroneous predictions of imminent mass starvation erred by underestimating the world‑changing potential of grasses.—
Literary Hub,
Literary Hub,
25 Mar. 2026
-
Complaints vary from inquiries sent through the website going unanswered and erroneous card charges to broken or ineffective merchandise.—
Dina Kaur,
AZCentral.com,
24 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
-
The selloff wasn’t irrational panic.—
Nick Lichtenberg,
Fortune,
7 Apr. 2026
-
Techlash is not irrational fear of innovation.—
Maha Hosain Aziz,
MSNBC Newsweek,
31 Mar. 2026
Adjective
-
People with the disorder usually experience a combination of psychotic symptoms, including hallucinations, delusions, and disorderly behavior.—
Encyclopedia Britannica,
Encyclopedia Britannica,
2 Apr. 2026
-
Among prisoners, 8% had psychotic disorders, compared to less than 1% of the general population, the report said.—
Christopher Keating,
Hartford Courant,
30 Mar. 2026
Adjective
-
However, the truth is in the blue links somewhere, and AI Overviews encourages people to accept its sometimes inaccurate summaries instead of checking those sources manually.—
ArsTechnica,
ArsTechnica,
7 Apr. 2026
-
When a consumer requests the removal of inaccurate information, credit agencies typically have 30 days to respond.—
Dan Avery,
CNBC,
6 Apr. 2026
Cite this Entry
“Unsound.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsound. Accessed 10 Apr. 2026.
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