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 logic behind Liam Rosenior’s shift to a back five at Brighton & Hove Albion on Tuesday was not entirely unsound.
—
Conor O'Neill, New York Times, 22 Apr. 2026
What is deeply concerning is that the District Attorney is choosing to proceed on a case that is fundamentally unsound and cannot be proven at trial.
—ABC News, 2 Apr. 2026
This not only makes the shade problem worse, Chamberlain says, but makes the tree more structurally unsound and vulnerable to damage in harsh weather conditions.
—Peg Aloi, The Spruce, 30 Mar. 2026
Named the David Geffen Galleries in recognition of the billionaire’s $150 million donation toward the $720 million effort, the concrete building replaces four others that were deemed structurally unsound.
—Julie Belcove, Robb Report, 15 Mar. 2026
See All Example Sentences for unsound
Conor O'Neill, New York Times, 22 Apr. 2026
What is deeply concerning is that the District Attorney is choosing to proceed on a case that is fundamentally unsound and cannot be proven at trial.
—ABC News, 2 Apr. 2026
This not only makes the shade problem worse, Chamberlain says, but makes the tree more structurally unsound and vulnerable to damage in harsh weather conditions.
—Peg Aloi, The Spruce, 30 Mar. 2026
Named the David Geffen Galleries in recognition of the billionaire’s $150 million donation toward the $720 million effort, the concrete building replaces four others that were deemed structurally unsound.
—Julie Belcove, Robb Report, 15 Mar. 2026
See All Example Sentences for unsound
Recent Examples of Synonyms for unsound
Adjective
-
One night in April when the boy playing Orlando was home sick and Jamie was waiting for Adele in their private coital chamber, Bromley kept her late to work on the scene where Orlando courts Rosalind playing Ganymede playing Rosalind.—
Jonathan Franzen,
New Yorker,
1 June 2026
-
Recently, she’s begun to feel physically sick due to everything going on in her life and is sharing with us that she’s been struggling with getting up, eating and other simple, everyday things.—
Harriette Cole,
Mercury News,
1 June 2026
Adjective
-
Last year’s conference-final loss to the Florida Panthers — an ugly result for an overmatched roster that had spent the regular season outkicking its coverage, maximizing its performance and raising expectations to an unreasonable level — is on that ledger, too.—
Sean Gentille,
New York Times,
28 May 2026
-
That lingering inventory, which has drawn criticism from fans who believe the list prices are unreasonable, is a principal feature of the governing body’s ticket pricing strategy.—
Sara Germano,
Sportico.com,
28 May 2026
Adjective
-
Manhattan Supreme Court Justice Melissa Jackson rejected the defense’s claims that Gilbert was legally insane.—
Stepheny Price,
FOXNews.com,
27 May 2026
-
The feminine style looks like a ballet flat but is just as comfortable as a sneaker—hence its insane appeal.—
Kaitlin Clapinski,
InStyle,
25 May 2026
Adjective
-
That assumption is erroneous—and dangerous.—
David Capablanca,
Forbes.com,
28 May 2026
-
Technology should be developed to track the same digital paths that erroneous content traveled, correcting the record along the way.—
Encyclopedia Britannica,
Encyclopedia Britannica,
28 May 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
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Carpenter says the disturbing encounters left her fearful for her safety and that of relatives living with her, as police label the suspect’s fixation irrational and increasingly dangerous.—
Emily St. Martin,
Los Angeles Times,
2 June 2026
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Great startups often look irrational at first.—
Anna Demeo,
Forbes.com,
31 May 2026
Adjective
-
Mary, our thirtysomething narrator, has recently boomeranged back to her hometown (York) after experiencing a break with reality that may or may not be psychotic.—
Emily Temple,
Literary Hub,
26 May 2026
-
In March 2023, Abdulai was assaulted by an inmate during a psychotic episode.—
Imani Cruzen,
Twin Cities,
19 May 2026
Adjective
-
In addition, the news organization insists its statements are true in the sense that, even if some details are inaccurate, the gist or overall summation of the reporting was right.—
Michael McCann,
Sportico.com,
2 June 2026
-
Doing so could result in inaccurate, misleading or incomplete outputs.—
Shekhar Iyer,
Forbes.com,
1 June 2026
Cite this Entry
“Unsound.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsound. Accessed 3 Jun. 2026.
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