as in unreasonable
having no basis in reason or fact
the accusation proved to be unfounded
Synonyms & Similar Words
Relevance
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 unfounded
For all his unfounded beliefs and suspicions, Kennedy’s revolt isn’t against research but against the power long held by scientific insiders like Fauci.
—
Daniel Immerwahr, New Yorker, 19 May 2025
The insurance giant already received a 20 percent rate increase last year, a move that a consumer watchdog group, as well as homeowners struggling to be paid after their homes were destroyed in January in the Los Angeles fires, criticized as unfair and unfounded.
—Rukmini Callimachi, New York Times, 14 May 2025
The move comes just a day after Harvard pushed back on the government's claims, calling them politically motivated and unfounded.
—Amanda Castro, MSNBC Newsweek, 13 May 2025
However, kidney and urology experts say this fear is unfounded.
—Caitlin Pagán, Verywell Health, 30 May 2025
See All Example Sentences for unfounded
Daniel Immerwahr, New Yorker, 19 May 2025
The insurance giant already received a 20 percent rate increase last year, a move that a consumer watchdog group, as well as homeowners struggling to be paid after their homes were destroyed in January in the Los Angeles fires, criticized as unfair and unfounded.
—Rukmini Callimachi, New York Times, 14 May 2025
The move comes just a day after Harvard pushed back on the government's claims, calling them politically motivated and unfounded.
—Amanda Castro, MSNBC Newsweek, 13 May 2025
However, kidney and urology experts say this fear is unfounded.
—Caitlin Pagán, Verywell Health, 30 May 2025
See All Example Sentences for unfounded
Recent Examples of Synonyms for unfounded
Adjective
-
The vast majority of post commenters assured the OP that her feelings are completely valid and that her mother is being unreasonable.—
Toria Sheffield,
People.com,
7 June 2025
-
But leading the team to the Finals is not an unreasonable request.—
Troy Renck,
Denver Post,
6 June 2025
Adjective
-
The site has a history of promoting groundless conspiracy theories.—
Tom Dreisbach,
NPR,
20 Feb. 2025
-
On Thursday, Gottlieb and Hudson blasted the lawsuit as legally groundless and an effort to silence the actress.—
Daniel S. Levine,
People.com,
21 Mar. 2025
Adjective
-
Trump fired Krebs, who directed the Cybersecurity and Infrastructure Security Agency, in November 2020 after Krebs disputed the Republican president’s unsubstantiated claims of voting fraud and vouched for the integrity of the 2020 election, which Trump lost to Democrat Joe Biden.—
Rebecca Santana,
Los Angeles Times,
3 June 2025
-
But Gallego and several council members opposed the agreement, calling the accusations unsubstantiated and others asking for a full review before adopting it.—
Alicia Victoria Lozano,
NBC news,
25 May 2025
Cite this Entry
“Unfounded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfounded. Accessed 18 Jun. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share