as in unreasonable
having no basis in reason or fact
baseless rumors that the baseball player was using steroids
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 baseless
Naroditsky, whose cause of death has not been made public, had vigorously denied cheating, and other chess champions agreed the claims were baseless.
—
Julia Prodis Sulek, Mercury News, 23 Oct. 2025
These baseless rumors of my involvement with Stephen and his death are false.
—Lynsey Eidell, PEOPLE, 22 Oct. 2025
More severe weather events due to global warming may be driving some of the baseless theories, scientists say.
—Stephanie Armour, CNN Money, 16 Oct. 2025
The baseless claims against Dominion caused one of its executives to go into hiding in 2020, and led to numerous defamation lawsuits.
—Npr Washington Desk, NPR, 9 Oct. 2025
That means millions of young people remain vulnerable to a practice the nation’s leading experts have long rejected as both harmful and scientifically baseless.
—Timothy Schraeder Rodriguez, Time, 8 Oct. 2025
On Sunday, Hamas leader Mahmoud Mardawi denied as baseless reports in Arab media that the group had agreed to lay down its weapons.
—Alexander Smith, NBC news, 6 Oct. 2025
Unfortunately, none of these concerns are baseless.
—Edward Lotterman, Twin Cities, 21 Sep. 2025
The Anti-Defamation League’s Center on Extremism found thousands of posts containing the baseless claims.
—Amelie Botbol, FOXNews.com, 18 Sep. 2025
Julia Prodis Sulek, Mercury News, 23 Oct. 2025
These baseless rumors of my involvement with Stephen and his death are false.
—Lynsey Eidell, PEOPLE, 22 Oct. 2025
More severe weather events due to global warming may be driving some of the baseless theories, scientists say.
—Stephanie Armour, CNN Money, 16 Oct. 2025
The baseless claims against Dominion caused one of its executives to go into hiding in 2020, and led to numerous defamation lawsuits.
—Npr Washington Desk, NPR, 9 Oct. 2025
That means millions of young people remain vulnerable to a practice the nation’s leading experts have long rejected as both harmful and scientifically baseless.
—Timothy Schraeder Rodriguez, Time, 8 Oct. 2025
On Sunday, Hamas leader Mahmoud Mardawi denied as baseless reports in Arab media that the group had agreed to lay down its weapons.
—Alexander Smith, NBC news, 6 Oct. 2025
Unfortunately, none of these concerns are baseless.
—Edward Lotterman, Twin Cities, 21 Sep. 2025
The Anti-Defamation League’s Center on Extremism found thousands of posts containing the baseless claims.
—Amelie Botbol, FOXNews.com, 18 Sep. 2025
Recent Examples of Synonyms for baseless
Adjective
-
That seems unreasonable given how weak this group has been.—
Jim Cramer,
CNBC,
20 Oct. 2025
-
This decision places an unreasonable financial burden on agencies and managers who are already navigating a fragile market.—
Lynette Rice,
Deadline,
17 Oct. 2025
Adjective
-
Kennedy has come under criticism for vaccine skepticism and repeating unfounded claims about the causes of autism.—
Zachary Schermele,
USA Today,
21 Oct. 2025
-
However, a new report by the BBC has found that such fears are likely exaggerated or unfounded.—
Christopher McFadden,
Interesting Engineering,
19 Oct. 2025
Adjective
-
Earlier this week, Sulton said the new criminal case is groundless and accused prosecutors of bringing additional charges because Spencer rejected a plea deal on the first case.—
Vanessa Swales,
jsonline.com,
17 Oct. 2025
-
The most extreme version of this debate over Kirk’s views on Israel emerged with shocking velocity after his death, in the form of groundless claims that he’d been killed by the Israelis.—
Ben Smith,
semafor.com,
15 Sep. 2025
Adjective
-
Musk himself has been known to repost unsubstantiated claims, boosting them to his hundreds of millions of followers.—
Hadas Gold,
CNN Money,
7 Oct. 2025
-
Russia’s unsubstantiated claims that NATO is plotting armed provocations against Transnistria could be a pretext for Moscow’s meddling in Moldova, raising concerns about further military aggression in the region.—
Brendan Cole,
MSNBC Newsweek,
25 Sep. 2025
Cite this Entry
“Baseless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/baseless. Accessed 29 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share