as in supporting
serving to give support to the truth or factualness of something
without some substantiating evidence, such as a stub from a bus ticket, who's going to believe your alibi?
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
1
as in proving
to gain full recognition or acceptance of
substantiated his claim to local mountaineering fame with a photo of himself on the summit of Mount McKinley
Synonyms & Similar Words
Antonyms & Near Antonyms
2
as in verifying
to give evidence or testimony to the truth or factualness of
Mr. MacGregor couldn't substantiate that it was Peter, and not some other rabbit, in the cabbage patch
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in embodying
to represent in visible form
the artist's intense feelings are substantiated by his paintings' bold colors and broad brush strokes
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4
as in establishing
to show the existence or truth of by evidence
substantiate the need for a tuition increase with some concrete figures
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5
as in reinforcing
to provide evidence or information for (as a claim or idea)
Darwin spent the rest of his life gathering evidence to substantiate his theory of the origin of species
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of substantiating
Elliot Raphaelson, The Orlando Sentinel, 8 May 2026
Because pain is so subjective—and because of the difficulty in substantiating conditions such as whiplash and soft-tissue damage—surgery had the benefit not just of running up the clinical expense of an accident but also of seeming to ratify its legitimacy.
—Patrick Radden Keefe, New Yorker, 13 Apr. 2026
Federal officials have declined to provide critical details substantiating their claim that an agent shot ICU nurse Alex Pretti in self-defense.
—Tricia Escobedo, CNN Money, 26 Jan. 2026
Verb
The minimum proof would be a letter from a physician explaining the condition and substantiating the claim.
—Elliot Raphaelson, The Orlando Sentinel, 8 May 2026
Because pain is so subjective—and because of the difficulty in substantiating conditions such as whiplash and soft-tissue damage—surgery had the benefit not just of running up the clinical expense of an accident but also of seeming to ratify its legitimacy.
—Patrick Radden Keefe, New Yorker, 13 Apr. 2026
Federal officials have declined to provide critical details substantiating their claim that an agent shot ICU nurse Alex Pretti in self-defense.
—Tricia Escobedo, CNN Money, 26 Jan. 2026
Recent Examples of Synonyms for substantiating
Adjective
-
Some went after Cashman, some after Boone, some after Steinbrenner’s son Hal, and some after Aaron Judge’s non-supporting cast.—
Ian O'Connor,
New York Times,
10 Oct. 2025
-
Sure, that was exacerbated, and to some degree directly caused, by the ample non-supporting cast around him, especially on the offensive line.—
Vahe Gregorian,
Kansas City Star,
11 Sep. 2025
Verb
-
In that context, Lipa’s Schiaparelli ensemble offers a compelling blueprint for modern bridal dressing, proving that a wedding look does not need to follow convention to feel impactful.—
Lauren Fisher,
Footwear News,
1 June 2026
-
His victim, in her unassailable purity, resists him, thereby proving that the arrivistes populating the ranks of England’s most upwardly mobile class had a moral edge over the nobility.—
Becca Rothfeld,
New Yorker,
1 June 2026
Verb
-
If the next decade of frontier AI is trained on the public corpus of news, verifying news verifies the foundation.—
Alex Lazarow,
Forbes.com,
31 May 2026
-
Two decades of breach dumps now sit between your parents and the systems still verifying them by date of birth, mailing address and the last four of a Social Security number.—
Kurt Knutsson,
FOXNews.com,
30 May 2026
Verb
-
Because change is not communicated by explaining it but by embodying it.—
Chiara Alzati,
Forbes.com,
1 June 2026
-
This initiative is a meaningful and fun way to do just that while also embodying LG’s Life’s Good philosophy.—
Tony Maglio,
HollywoodReporter,
1 June 2026
Verb
-
Archer and Joby are establishing significant footprints already with bets in the Middle East, where regulators and governments have readily embraced the new tech.—
Samantha Subin,
CNBC,
29 May 2026
-
But the incident will no doubt deal a blow to not only Blue Origin's ambitions of gaining ground on commercial spaceflight competitor SpaceX, but also to NASA's ambitions of establishing a foothold on the moon.—
Eric Lagatta,
USA Today,
29 May 2026
Verb
-
The space also features vintage furnishings by Eileen Gray and antiques sourced by Garcia, reinforcing the residential quality Mage sought to create.—
Thomas Waller,
Footwear News,
4 June 2026
-
Apple also authorized an additional $100 billion share repurchase program, reinforcing the power of its free-cash-flow model.—
,
CNBC,
3 June 2026
Verb
-
Northrop Grumman has announced that its Jackal precision strike missile has completed another successful flight test, demonstrating the rapidly evolving technological maturity of the weapon system.—
Aditya Jadhav,
Interesting Engineering,
3 June 2026
-
And public anger grew after video showed an activist being dragged by a private security guard while demonstrating at the site.—
ABC News,
ABC News,
3 June 2026
Verb
-
Bullish thesis iPhone upgrade cycle is reaccelerating Apple's iPhone 17 lineup helped drive a March-quarter iPhone revenue record, confirming that hardware demand remains far healthier than bears expected.—
,
CNBC,
3 June 2026
-
Santos' video confirming his presence sent odds soaring.—
Bobby Allyn,
NPR,
2 June 2026
Cite this Entry
“Substantiating.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/substantiating. Accessed 7 Jun. 2026.
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