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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Example Sentences
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Recent Examples of adamantine
During Vargas Llosa’s lifetime, his political beliefs underwent extreme changes, from supporting Castro’s revolutionary Communism to championing traditional European liberalism, which included an adamantine belief in unregulated markets.
—
Literary Hub,
26 Feb. 2026
Image My first collision with the adamantine wall of Vivamayr house rules coincided with my arrival.
—
Caity Weaver,
New York Times,
25 Jan. 2025
This poor little deer had to be sacrificed by your adamantine reviewer to show you how the new tool works.
—
PCMAG,
30 May 2024
She is known for her aphoristic precision and intense, adamantine paragraphs.
—
Matthew Gavin Frank,
Harper's Magazine,
21 Feb. 2022
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
Literary Hub,
26 Feb. 2026
Image My first collision with the adamantine wall of Vivamayr house rules coincided with my arrival.
—
Caity Weaver,
New York Times,
25 Jan. 2025
This poor little deer had to be sacrificed by your adamantine reviewer to show you how the new tool works.
—
PCMAG,
30 May 2024
She is known for her aphoristic precision and intense, adamantine paragraphs.
—
Matthew Gavin Frank,
Harper's Magazine,
21 Feb. 2022
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
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While waiting to go to court, Zaayer remained adamant that Shawna needed to go to prison but was also convinced that David — who worked at the nearby jail — was protecting his wife from receiving an adequate punishment, per The Guardian.
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But Senate Majority Leader John Thune (R-SD) has been adamant that there are not enough votes in the Senate to pass the legislation, given the 60-vote filibuster threshold.
Adjective
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The weather service’s forecast discussion for Kansas City said the stubborn heat could last through the Fourth of July.
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Against all odds, the stubborn housing market has become a hotspot for young talent.
Adjective
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To his supporters, Iran’s late Supreme Leader Ayatollah Ali Khamenei was the steadfast, fearless leader who transcended mere politics and inspired devotion.
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Each project generated steadfast opposition from the city's neighborhoods, calling into question how the city should regulate the advanced technology centers.
Adjective
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Follow these steps to get rid of hardened residue, odors, and germs, and learn how to make outdoor trash cans a little less yucky.
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Hauser played hardened ranch foreman Rip Wheeler on the Paramount Network series that ran from 2018 to 2024.
Cite this Entry
“Adamantine.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/adamantine. Accessed 6 Jul. 2026.
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