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
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
-
Work with that element of chance because learning to enjoy embracing—working with it—is fun and fun isn’t logical, and logic isn’t always your ally in that initial stage of creation.—
Literary Hub,
Literary Hub,
20 May 2026
-
Claiming early—at 62—to generate income to service debt might seem logical but typically costs significantly more over the long run than delaying to 70 and paying down debt from other sources in the interim.—
Jason Kirsch,
Forbes.com,
20 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
-
The most sensible near-term opportunities are therefore not necessarily giant greenfield projects.—
Ariel Cohen,
Forbes.com,
20 May 2026
-
This sounds like Secretary Mullin has been reevaluating what his predecessor had gone into to more of a stable, sensible approach.—
Anna Giaritelli,
The Washington Examiner,
20 May 2026
Adjective
-
From the standpoint of productivity, however, ephemera often seems counter to efficiency—to getting a coherent story down on paper and ready for publication as soon as humanly possible.—
Literary Hub,
Literary Hub,
20 May 2026
-
Over time and when managed well, these practices shape how individuals relate to the work, to one another and the business as a whole, thus keeping the company coherent even as conditions change.—
Naira Velumyan,
Forbes.com,
20 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 23 May. 2026.
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