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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Football has typically accepted these lapses and quietly moved on, adamant that the use of performance-enhancing drugs (PED) is primarily a problem for other sports.—
Philip Buckingham,
New York Times,
20 June 2025
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Green groups are adamant EVs should be the only option.—
Neil Winton,
Forbes.com,
17 June 2025
Adjective
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Then Curry, rattled by the monumental reverb of Kyrie’s shot, hurried into a stubborn approach on the ensuing possession, missed a desperate 3 over Kevin Love, who used his length and a rare display of defensive intensity to deny Curry a good look.—
David Aldridge,
New York Times,
22 June 2025
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All of which can be employed by Musk or anyone else using AI to target us with false political advertising tailored to our most stubborn biases, further dividing us, manipulating elections and solidifying what has already become a fascist state.—
Sal Recchi,
The Orlando Sentinel,
22 June 2025
Adjective
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Despite setbacks — including talks of a walkout, which stalled when leadership got wind of the strategic move — the cheerleaders remained steadfast in their pursuit.—
Angelique Jackson,
Variety,
25 June 2025
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While some things have changed since then — such as her hair color and last name — Brett’s philosophy on the power of education and educators has remained steadfast, even as the culture and technology of both education and the world shifted.—
Joseph States,
Chicago Tribune,
24 June 2025
Cite this Entry
“Adamantine.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/adamantine. Accessed 1 Jul. 2025.
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