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 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
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
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
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 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
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
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
Recent Examples of Synonyms for adamantine
Adjective
-
Stephen Miller made these comments on CNN and was adamant that this would happen.—
Arkansas Online,
Arkansas Online,
9 Jan. 2026
-
Although the film would have been far easier to finance if the production took place in another country, Hadi was adamant about shooting in his homeland.—
Alissa Simon,
Variety,
9 Jan. 2026
Adjective
-
That tone—of pain, of surprise, of a stubborn refusal to be reduced or diminished—is everywhere in it.—
Questlove,
The Atlantic,
7 Nov. 2025
-
If the stain is stubborn, add a few drops of dish soap to the water and vinegar mixture.—
Ashlyn Needham,
Southern Living,
7 Nov. 2025
Adjective
-
What alerted them to her location wasn’t footprints or a cell phone ping, however, but rather the sounds of her steadfast pup, Cami.—
Outside,
Outside,
6 Jan. 2026
-
The year-on-year increases at each major are more modest, usually between 10 and 12 percent, but that percentage of tournament revenue remains steadfast, if not entirely immovable.—
Matthew Futterman,
New York Times,
6 Jan. 2026
Adjective
-
Still, some military analysts remain cautious, noting that satellites are built to endure intense cosmic radiation with hardened components and shielding, leaving open the question of whether such directed energy could penetrate these defenses.—
Bojan Stojkovski,
Interesting Engineering,
8 Nov. 2025
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If this group of hardened degenerates was able to enjoy the action at this level, who, exactly, are the spiritual victims of sports betting?—
Jay Caspian Kang,
New Yorker,
7 Nov. 2025
Cite this Entry
“Adamantine.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/adamantine. Accessed 11 Jan. 2026.
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