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
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of well-founded
And that uncertainty may be well-founded, because according to The Athletic national baseball writer and former MLB general manager Jim Bowden, there's another All-Star second baseman in the division who could make sense for New York.
—
Jon Vankin, MSNBC Newsweek, 26 Oct. 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
Jon Vankin, MSNBC Newsweek, 26 Oct. 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
-
Not even a meta ending that pushes that idea to its logical breaking point can sour you on it.—
David Fear,
Rolling Stone,
7 Nov. 2025
-
To be fair, public entities have been stretching public records trade secret exceptions to logical extremes long before college athletes started getting paid—and these carve-outs are often intended to be permissive.—
Daniel Libit,
Sportico.com,
6 Nov. 2025
Adjective
-
Relative to the starting pitcher market, his contract -- he is owed $28 million combined over the next two seasons with a club option for 2028 -- is reasonable.—
Shaun McAvoy,
MSNBC Newsweek,
11 Nov. 2025
-
The pop punk icon confirmed a slate of upcoming shows for next year on Monday, along with efforts to ensure tickets get in actual fans’ hands for a reasonable price, rather than to resellers who will hawk them at major markups to those who missed out during the initial on-sale.—
Ethan Millman,
HollywoodReporter,
10 Nov. 2025
Adjective
-
Military admission with valid ID is $18.—
Marcus Smith,
Sacbee.com,
7 Nov. 2025
-
The entrance fee is $30 per vehicle, valid for a full week across all three park units, or $55 for an annual pass.—
Karthika Gupta,
Travel + Leisure,
7 Nov. 2025
Adjective
-
The ledger is the foundation of reasoned conclusion.—
Big Think,
Big Think,
5 Nov. 2025
-
The differences between any given Grokipedia and Wikipedia entry are in some sense hard to debate because there is no shared ground upon which to have a reasoned disagreement; to gravitate toward Grokipedia is to leave the world of evidence for that of belief.—
Matteo Wong,
The Atlantic,
28 Oct. 2025
Adjective
-
There seemed to be a rational acceptance of the outcome.—
James McNicholas,
New York Times,
9 Nov. 2025
-
Therefore, the present work supports the belief that rational materials design at both the macro and atomic levels can solve long-standing challenges, according to a press release.—
Prabhat Ranjan Mishra,
Interesting Engineering,
8 Nov. 2025
Adjective
-
At 48 percent off, the traveler-adored Matein Travel Laptop Backpack is an excellent, sensible gift that can function as both a personal item and an everyday sightseeing tote.—
Merrell Readman,
Travel + Leisure,
7 Nov. 2025
-
Understanding the absurdity of one trillion anything makes the $38 trillion US national debt that economists have been blathering on about for years look almost sensible.—
Allison Morrow,
CNN Money,
6 Nov. 2025
Adjective
-
Not even a coherent defense of whatever decisions prompted the protests.—
Charlie Warzel,
The Atlantic,
6 Nov. 2025
-
Apparently each set of doubles is supposed to add up to a coherent theme.—
Judy Berman,
Time,
6 Nov. 2025
Adjective
-
The justified fear was that without a conference affiliation with the two biggest schools in the Big 12 would be catastrophic to Texas Tech University, its football team, the entire athletic department, and to Lubbock itself.—
Mac Engel
November 8,
Fort Worth Star-Telegram,
8 Nov. 2025
-
Majumdar lavishes her characters with careful attention, and so the reader comes to regard their most troubling actions as justified, if not inevitable.—
Tope Folarin,
The Atlantic,
8 Nov. 2025
Cite this Entry
“Well-founded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/well-founded. Accessed 17 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share