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
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
His concern now seems well-founded.
—Chris Murphy, Vanity Fair, 29 Jan. 2026
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
His concern now seems well-founded.
—Chris Murphy, Vanity Fair, 29 Jan. 2026
Recent Examples of Synonyms for well-founded
Adjective
-
As far as the second outside cornerback is concerned, the most logical answer would be JuJu Brents, who looked impressive in his two starts in 2025 prior to sustaining a foot injury in Week 11 that required season-ending surgery.—
Miami Herald,
Miami Herald,
13 May 2026
-
On one hand, when a team selects in the lottery, the logical next step is a draft party, part of the hype of the next newcomer to be marketed.—
Ira Winderman,
Sun Sentinel,
13 May 2026
Adjective
-
In a debate for the Democratic nomination for the Senate in Iowa this month, one of the moderators, Erin Murphy, asked the candidates, Josh Turek and Zach Wahls, both state legislators, a reasonable, if downbeat, question.—
Amy Davidson Sorkin,
New Yorker,
17 May 2026
-
The tuition payments may be a gift presented without strings, but there are still plenty of reasonable expectations that come with a college education.—
R. Eric Thomas,
Chicago Tribune,
17 May 2026
Adjective
-
The unidentified driver, who remains in the Grapevine Jail, was arrested and faces charges of operation of a vehicle in the closed section of park/lake, no valid boat registration and numerous water safety equipment violations, police said.—
Shambhavi Rimal,
Fort Worth Star-Telegram,
19 May 2026
-
Police said McDaniel remains in jail as of Tuesday, charged with operation of a vehicle in a closed section of the lake, not having a valid boat registration and other water safety equipment violations.—
Matthew Ablon,
CBS News,
19 May 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
-
On the surface, this looks rational.—
Illia Smoliienko,
Forbes.com,
15 May 2026
-
In the face of what all agree is a housing crisis, Onni’s residential plan will have to wait at least a decade for a more rational City Council.—
The Editorial Board,
Chicago Tribune,
14 May 2026
Adjective
-
However, learning when and how to prune a dogwood tree is sensible to help keep your specimen looking and feeling its best.—
Gemma Johnstone,
The Spruce,
11 May 2026
-
According to Arthur Ream, a computer information systems lecturer at Bentley University, the home-as-data-center model is plausible, already happening, and a sensible answer for inference workloads, if not training.—
Kevin Williams,
CNBC,
9 May 2026
Adjective
-
From the outside, her life looked coherent.—
Lyssanoel Frater,
USA Today,
13 May 2026
-
Without a coherent federal framework, patients in underserved areas will keep waiting for care that AI could safely deliver, while states cycle through ad hoc deployments and predictable backlash.—
Alon Bergman,
STAT,
11 May 2026
Adjective
-
While that number has been met with justified skepticism from most fans, there's apparently plenty of support within the sport.—
Ian Miller OutKick,
FOXNews.com,
14 May 2026
-
But policies that make the economy fairer for the populace are more justified than ever.—
Alexander Heffner,
Chicago Tribune,
13 May 2026
Cite this Entry
“Well-founded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/well-founded. Accessed 20 May. 2026.
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