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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President Donald Trump has been adamant his tariffs will bring factory jobs back to American shores.—
Preston Fore,
Fortune,
27 June 2025
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Among the holdouts are members of the SALT Caucus, who have been adamant that any deal from the Senate that does not match the one that passed the House is dead on arrival.—
Rachel Schilke,
The Washington Examiner,
27 June 2025
Adjective
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One of the people that is most stubborn in their support of these spendy projects is Senator Todd Young, a Republican from Indiana.—
Roger Valdez,
Forbes.com,
1 July 2025
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For indoor brick, keep it simple by trying a slightly damp brush to sweep away stubborn dirt.—
Patricia Shannon,
Southern Living,
29 June 2025
Adjective
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But Rosary’s goals and its place in the community have remained steadfast, school leadership says.—
Molly Morrow,
Chicago Tribune,
7 July 2025
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Accessibility and Sustainability Environmental care is one of Bitter End’s most steadfast values.—
Lydia Price,
Travel + Leisure,
6 July 2025
Cite this Entry
“Adamantine.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/adamantine. Accessed 15 Jul. 2025.
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