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
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 skepticism is well-founded.
—Luis Peralta, Forbes.com, 27 Mar. 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
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 skepticism is well-founded.
—Luis Peralta, Forbes.com, 27 Mar. 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
-
The ten-course meal costs a hundred and forty dollars per person, which is not exactly sofa-cushion change but does feel reasonable given that such high-flying pastry is normally available only at the end of ultra-ritzy meals of considerably higher expense.—
Helen Rosner,
New Yorker,
10 May 2026
-
Finding the perfect venue to have a ring, a backstage area, paying fees and setting a reasonable ticket price are all things that have to be considered.—
Ryan Gaydos,
FOXNews.com,
8 May 2026
Adjective
-
The vulnerability allowed attackers to bypass two-factor authentication protections after obtaining valid login credentials.—
Neetika Walter,
Interesting Engineering,
12 May 2026
-
Presenting a utility bill as a valid form of identification at a voting precinct in West Virginia has gone the way of the tavern polling place and the punch-card ballot.—
John Raby,
Los Angeles Times,
12 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 16 May. 2026.
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