1
as in logical
according to the rules of logic
even a well-founded argument can lead to an erroneous conclusion if one of the premises is incorrect
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in reasonable
based on sound reasoning or information
a well-founded complaint about the business's treatment of its customers
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of well-founded
However, the team's recent poor performance has generated all kinds of comments, some more well-founded than others.
—
Julio Cesar Valdera Morales, MSNBC Newsweek, 15 Sep. 2025
That fear was probably well-founded.
—Ryan Whitwam, ArsTechnica, 5 Sep. 2025
One of these targets was to define a sound and well-founded strategy for Calik Denim to become a carbon-neutral company.
—Angela Velasquez, Sourcing Journal, 28 Aug. 2025
That confidence proved well-founded.
—Clayton Davis, Variety, 13 Aug. 2025
While these fears may be well-founded, our response should not be to reject crypto altogether, but rather embrace thoughtful policies to mitigate risks, protect consumers, and promote transparency.
—Jeremy Cooney, New York Daily News, 30 May 2025
Olson argued on behalf of The Bee that St. Hope’s judgment that these charges were not well-founded does not justify non-disclosure.
—Jennah Pendleton, Sacbee.com, 23 May 2025
Rohloff believes this sentiment is well-founded, especially in sectors like government, finance, and healthcare, where the stakes of data mishandling are existential.
—Gary Drenik, Forbes.com, 22 May 2025
Such concern is well-founded, analysts told ABC News, since small businesses typically lack the financial buffer, supply-chain flexibility and political influence of their larger counterparts.
—Max Zahn, ABC News, 10 May 2025
Julio Cesar Valdera Morales, MSNBC Newsweek, 15 Sep. 2025
That fear was probably well-founded.
—Ryan Whitwam, ArsTechnica, 5 Sep. 2025
One of these targets was to define a sound and well-founded strategy for Calik Denim to become a carbon-neutral company.
—Angela Velasquez, Sourcing Journal, 28 Aug. 2025
That confidence proved well-founded.
—Clayton Davis, Variety, 13 Aug. 2025
While these fears may be well-founded, our response should not be to reject crypto altogether, but rather embrace thoughtful policies to mitigate risks, protect consumers, and promote transparency.
—Jeremy Cooney, New York Daily News, 30 May 2025
Olson argued on behalf of The Bee that St. Hope’s judgment that these charges were not well-founded does not justify non-disclosure.
—Jennah Pendleton, Sacbee.com, 23 May 2025
Rohloff believes this sentiment is well-founded, especially in sectors like government, finance, and healthcare, where the stakes of data mishandling are existential.
—Gary Drenik, Forbes.com, 22 May 2025
Such concern is well-founded, analysts told ABC News, since small businesses typically lack the financial buffer, supply-chain flexibility and political influence of their larger counterparts.
—Max Zahn, ABC News, 10 May 2025
Recent Examples of Synonyms for well-founded
Adjective
-
Those seemingly chaotic kids are on their way to more obviously logical behavior soon.—
Celeste Kidd,
The Conversation,
3 Oct. 2025
-
Things had crumbled enough that Sasaki emerged as a logical option.—
Fabian Ardaya,
New York Times,
2 Oct. 2025
Adjective
-
Jones is signed for another five seasons at a $7 million cap hit that is only going to get more reasonable as the cap continues to rise.—
Harman Dayal,
New York Times,
7 Oct. 2025
-
So, spending your free time on a massive project for your crush seems perfectly reasonable.—
Andrea Wurzburger,
PEOPLE,
5 Oct. 2025
Adjective
-
The individual permit, which requires a $25 fee per shipment, is valid for a range of dates authorized once issued.—
Lillian Metzmeier,
Louisville Courier Journal,
3 Oct. 2025
-
Messages > Send & Receive and tap your valid phone number to activate iMessage.—
PC Magazine,
PC Magazine,
3 Oct. 2025
Adjective
-
Every argument has a rational, emotional, and rhetorical component.—
Louisa Thomas,
New Yorker,
5 Oct. 2025
-
If the court concludes that conversion therapy is conduct, then the Colorado law is subject to the same standard used in Skrmetti – rational basis – and likely will survive.—
Timothy R. Holbrook,
The Conversation,
2 Oct. 2025
Adjective
-
Over the course of nine films that span more than 50 years, not once does horror film icon Leatherface take sensible chainsaw safety precautions.—
Andrew Paul,
Popular Science,
2 Oct. 2025
-
To kick off your collection, here’s what The Athletic feel are the most sensible and eye-catching Yamal rookie cards to collect.—
Andrew Mackie,
New York Times,
29 Sep. 2025
Adjective
-
One thing that is really striking is that there really doesn’t seem to be a coherent China policy in this Administration.—
Isaac Chotiner,
New Yorker,
30 Sep. 2025
-
By studying the region with narrowband filters sensitive to hydrogen (H-alpha) and sulfur (S II) emissions, the team detected a coherent, circular shell structure centered on the nova.—
Rupendra Brahambhatt,
Interesting Engineering,
27 Sep. 2025
Adjective
-
For much of the last decade, the Mets’ amorphous but always restricted budget drew the justified ire of their fan base.—
Tim Britton,
New York Times,
2 Oct. 2025
-
And that then links to their view of what they’re justified doing in response to the grievances.—
Belinda Luscombe,
Time,
29 Sep. 2025
Adjective
-
Kerzka and the others did their best to comfort them, to bandage small wounds; the most critically injured were already at the hospital.—
Georgea Kovanis,
Freep.com,
5 Oct. 2025
-
But in one of his best performances in an Arsenal shirt so far, Zubimendi quickly went about making a difference.—
Art de Roché,
New York Times,
5 Oct. 2025
Cite this Entry
“Well-founded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/well-founded. Accessed 8 Oct. 2025.
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