as in adamant
sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion
the adamantine opposition of his parents to his marriage to a girl from a poor family
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Recent Examples of adamantine
Still, Naz, whose solitary ways confuse his family, very much wishes that Aziza wasn’t meeting his adamantine mother, Claudine (LaTanya Richardson Jackson), or his famous father, or his ex-state-senator older brother, Junior (Glenn Davis), recently incarcerated for embezzling campaign funds.
—
Helen Shaw, The New Yorker, 20 Mar. 2025
Image My first collision with the adamantine wall of Vivamayr house rules coincided with my arrival.
—Caity Weaver, New York Times, 25 Jan. 2025
Although Bush and Obama both flirted with what was once called entitlement reform, Trump and Biden now present themselves as adamantine defenders of Social Security and Medicare, each accusing the other of secretly aiming to cut those programs.
—Matthew Karp, Harper's Magazine, 2 Oct. 2024
This view is much in vogue today, casting China not as a country that responds to pressure and incentives but as an adamantine force incapable of reacting to external stimuli.
—Julian Gewirtz, Foreign Affairs, 13 Oct. 2020
This poor little deer had to be sacrificed by your adamantine reviewer to show you how the new tool works.
—PCMAG, 30 May 2024
At the Guggenheim Bilbao, at Glenstone, at SF MoMA and in St. Louis — in so many places around the world — Serra’s adamantine sculptures act on you.
—Sebastian Smee, Washington Post, 27 Mar. 2024
She is known for her aphoristic precision and intense, adamantine paragraphs.
—Matthew Gavin Frank, Harper's Magazine, 21 Feb. 2022
So contrary to what Gordon suggests, effective teaching, as Weber saw it, involves much more than pitting students’ opinions against adamantine facts.
—Peter E. Gordon, The New York Review of Books, 19 Nov. 2020
Helen Shaw, The New Yorker, 20 Mar. 2025
Image My first collision with the adamantine wall of Vivamayr house rules coincided with my arrival.
—Caity Weaver, New York Times, 25 Jan. 2025
Although Bush and Obama both flirted with what was once called entitlement reform, Trump and Biden now present themselves as adamantine defenders of Social Security and Medicare, each accusing the other of secretly aiming to cut those programs.
—Matthew Karp, Harper's Magazine, 2 Oct. 2024
This view is much in vogue today, casting China not as a country that responds to pressure and incentives but as an adamantine force incapable of reacting to external stimuli.
—Julian Gewirtz, Foreign Affairs, 13 Oct. 2020
This poor little deer had to be sacrificed by your adamantine reviewer to show you how the new tool works.
—PCMAG, 30 May 2024
At the Guggenheim Bilbao, at Glenstone, at SF MoMA and in St. Louis — in so many places around the world — Serra’s adamantine sculptures act on you.
—Sebastian Smee, Washington Post, 27 Mar. 2024
She is known for her aphoristic precision and intense, adamantine paragraphs.
—Matthew Gavin Frank, Harper's Magazine, 21 Feb. 2022
So contrary to what Gordon suggests, effective teaching, as Weber saw it, involves much more than pitting students’ opinions against adamantine facts.
—Peter E. Gordon, The New York Review of Books, 19 Nov. 2020
Recent Examples of Synonyms for adamantine
Adjective
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However, Coast Guard officials were adamant that FEMA makes the ultimate decision, and that FEMA’s choices may differ from the Coast Guard’s recommendations.—
Joseph States,
Chicago Tribune,
30 July 2025
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However, she’s remained adamant that to pull off paying homage to the famed actress, everything must be done right.—
Angel Saunders,
People.com,
29 July 2025
Adjective
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Here’s the case for Scorpio: Wednesday is suss, secretive, brooding, vengeful and stubborn.—
Lisa Stardust,
People.com,
6 Aug. 2025
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For Baxter and the stubborn Scot, this marked, at last, the reality of war’s end.—
Charles Pellegrino,
Rolling Stone,
6 Aug. 2025
Adjective
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Exciting developments are on the horizon, but no matter how ebikes evolve, one rule remains steadfast: Buy a bike from a manufacturer that offers good customer support.—
Stephanie Pearson,
Wired News,
8 Aug. 2025
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Jones has remained steadfast in his praise of Parsons after his trade request.—
Ryan Canfield,
FOXNews.com,
6 Aug. 2025
Cite this Entry
“Adamantine.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/adamantine. Accessed 19 Aug. 2025.
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