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
Relevance
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
Add to that an affordability crisis hitting families’ checkbooks and many businesses’ eager push to utilize artificial intelligence, and workers’ sentiments appear well-founded.
—
Matt Helmer, Fortune, 23 May 2026
That perspective is well-founded.
—Marcus Balzereit, Forbes.com, 15 May 2026
Your confusion and hurt are well-founded.
—R. Eric Thomas, Chicago Tribune, 18 Apr. 2026
The guidance to assume compromise is well-founded.
—Dan Goodin, ArsTechnica, 3 Apr. 2026
And the Republicans’ concern is well-founded.
—Douglas E. Schoen, Washington Post, 1 Apr. 2026
That certainty proved well-founded.
—Hanna Wickes, Kansas City Star, 16 Mar. 2026
The next few weeks will show if that confidence is well-founded.
—Tim McDonnell, semafor.com, 19 Feb. 2026
These fears are well-founded, as authorities have previously executed many protesters following grossly unfair trials, while many others remain on death row.
—Hamid Kashani, Twin Cities, 5 Feb. 2026
Matt Helmer, Fortune, 23 May 2026
That perspective is well-founded.
—Marcus Balzereit, Forbes.com, 15 May 2026
Your confusion and hurt are well-founded.
—R. Eric Thomas, Chicago Tribune, 18 Apr. 2026
The guidance to assume compromise is well-founded.
—Dan Goodin, ArsTechnica, 3 Apr. 2026
And the Republicans’ concern is well-founded.
—Douglas E. Schoen, Washington Post, 1 Apr. 2026
That certainty proved well-founded.
—Hanna Wickes, Kansas City Star, 16 Mar. 2026
The next few weeks will show if that confidence is well-founded.
—Tim McDonnell, semafor.com, 19 Feb. 2026
These fears are well-founded, as authorities have previously executed many protesters following grossly unfair trials, while many others remain on death row.
—Hamid Kashani, Twin Cities, 5 Feb. 2026
Recent Examples of Synonyms for well-founded
Adjective
-
Perhaps licensing the traits and voices of those characters is the next logical step.—
Alex Weprin,
HollywoodReporter,
3 June 2026
-
With Jordyn Brooks entrenched as Miami’s starting weak-side linebacker, a logical hypothesis is that Rodriguez and Dodson are competing to see who starts next to the NFL’s leading tackler.—
Omar Kelly,
Miami Herald,
3 June 2026
Adjective
-
That would be impossible to spend in any reasonable manner in one lifetime.—
Chris Isidore,
CNN Money,
6 June 2026
-
Nobody reasonable wants Sinner, Alcaraz, Djokovic, Aryna Sabalenka, Coco Gauff or the sport’s other biggest stars treated like anonymous qualifiers.—
Dan Zaksheske OutKick,
FOXNews.com,
6 June 2026
Adjective
-
Folks need to have a valid match ticket for the charter service, which is only available on match days, and begins around five hours before kickoff and will operate three hours after the game.—
Brayden Garcia,
Fort Worth Star-Telegram,
2 June 2026
-
These were all valid objectives, but none of them clearly defined the decision the system was meant to improve.—
Hari Sonnenahalli,
Forbes.com,
1 June 2026
Adjective
-
None are credible challengers; Matt Conroy is the more reasoned and moderate of the three.—
The Editorial Board,
Chicago Tribune,
11 Feb. 2026
-
This is a time for cool, calm and reasoned debate, and for legislators to think through the consequences of legislation put forth.—
Bobby Zirkin,
Baltimore Sun,
15 Jan. 2026
Adjective
-
For most of investing history, that discomfort was rational.—
Ethan Stone,
USA Today,
29 May 2026
-
For all the prior cinematic depictions of storming bunkers and camaraderie under fire, Pressure offers us the quiet heroism of rational restraint in the figure of James Stagg, who weathered his inner storms and bore the courage to be disliked.—
Daniel Jonah Wolpert,
NPR,
29 May 2026
Adjective
-
Their goal, according to Barbara Chan, an organizer behind the No on C campaign, was to first defeat Measure C before pursuing what the group believes would be a more financially sensible solution for the city.—
Sierra Lopez,
Mercury News,
3 June 2026
-
People see you as sensible and ready to assume the responsibilities of the position.—
Georgia Nicols,
Denver Post,
2 June 2026
Adjective
-
Trying to turn this into a coherent human-understandable explanation is quite challenging.—
Lance Eliot,
Forbes.com,
1 June 2026
-
So quite a bit of coherent narrative has already emerged from the soup.—
Deborah Treisman,
New Yorker,
1 June 2026
Adjective
-
While many agree that the bombing of Hiroshima was justified, there was no public outcry of genocide when the bomb fell on Nagasaki.—
Letters to the Editor,
The Orlando Sentinel,
27 May 2026
-
There is a lot of excitement around AI in energy and some of it is justified.—
Gregory Shahnovsky,
Forbes.com,
26 May 2026
Cite this Entry
“Well-founded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/well-founded. Accessed 7 Jun. 2026.
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