1
as in strict
not allowing for any exceptions or loosening of standards
lost weight only after a cast-iron adherence to his diet
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Antonyms & Near Antonyms
2
as in sturdy
able to withstand hardship, strain, or exposure
he has a cast-iron faith in his innate ability to overcome any adversity that life might throw against him
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Example Sentences
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Recent Examples of cast-iron
During one spell, in 1971, a housemate contemplated knocking Schuyler over the head with a cast-iron skillet but feared that the blow would only provoke him.
—
Dan Chiasson, New Yorker, 4 Aug. 2025
Lucky for cast-iron newbies, most skillets sold these days come pre-seasoned.
—Patricia Shannon, Southern Living, 2 Aug. 2025
At the scene, investigators recovered several bloodied household items: a fireplace poker, a cast-iron kettle and a decorative conch shell.
—Christina Coulter, People.com, 2 Aug. 2025
Nearly everything has been tailor-made, from the heavy Italian marble doors—devoid of handles and designed to swing open at the touch of a room key—to one of the last original Stigler elevator with its cast-iron cladding still in operation.
—Katharina Kotrba, Forbes.com, 1 Aug. 2025
See All Example Sentences for cast-iron
Dan Chiasson, New Yorker, 4 Aug. 2025
Lucky for cast-iron newbies, most skillets sold these days come pre-seasoned.
—Patricia Shannon, Southern Living, 2 Aug. 2025
At the scene, investigators recovered several bloodied household items: a fireplace poker, a cast-iron kettle and a decorative conch shell.
—Christina Coulter, People.com, 2 Aug. 2025
Nearly everything has been tailor-made, from the heavy Italian marble doors—devoid of handles and designed to swing open at the touch of a room key—to one of the last original Stigler elevator with its cast-iron cladding still in operation.
—Katharina Kotrba, Forbes.com, 1 Aug. 2025
See All Example Sentences for cast-iron
Recent Examples of Synonyms for cast-iron
Adjective
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The widespread destruction triggered stricter building codes across the state.—
Susannah Bryan,
Sun Sentinel,
16 Aug. 2025
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In addition to broadening Opinel's appeal in jurisdictions with strict regulations on locking knives, the Opiflex mechanism is designed to streamline blade opening and closing for fast, intuitive knife use.—
New Atlas,
New Atlas,
16 Aug. 2025
Adjective
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The immolation of the Bronx was all the more staggering because, a generation before, it had been filled with upwardly mobile residents in sturdy homes.—
Daniel Immerwahr,
New Yorker,
18 Aug. 2025
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For five rounds, Chimaev rag-dolled a massive and sturdy champion in Dricus Du Plessis en route to a decisive victory (50-44 x3).—
Brian Mazique,
Forbes.com,
17 Aug. 2025
Adjective
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Every insurance article is based on rigorous reporting by our team of expert writers and editors with extensive knowledge of insurance products.—
Liz Knueven,
CNBC,
15 Aug. 2025
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While the certification was not specifically a result of litigation, pursuing rigorous, third-party validation of AI practices is increasingly viewed as an industry best practice.—
Marc Blythe,
Forbes.com,
15 Aug. 2025
Adjective
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But some are hardier than others, particularly when they’re built for bona fide outdoor adventure.—
Olivia Young,
Travel + Leisure,
2 Aug. 2025
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Southern states familiar with an invasive, stinging ant are facing a new foe: A hybrid bug that combines the fierce red fire ant and the hardy black fire ant.—
Gareth McGrath,
USA Today,
28 June 2025
Adjective
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Different from a program of record, which reflects a rigid requirement and often a single vendor, a capability of record signals the need for ongoing capability, such as for small drones.—
Michael Brown,
Forbes.com,
7 Aug. 2025
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The Hopkins clinic fit squarely into the desire of these movements to offer Americans alternatives to the rigid gender roles and compulsory heterosexuality of the Cold War era.—
Time,
Time,
7 Aug. 2025
Adjective
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This results in a charge imbalance that builds up an electric field strong enough to trigger flashes of lightning.—
National Geographic,
National Geographic,
13 Jan. 2023
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According to research from Everytown for Gun Safety, a nonprofit that advocates for gun control, strong gun control laws are correlated with fewer gun deaths.—
Elliot Hughes,
Journal Sentinel,
13 Jan. 2023
Adjective
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Zilpha still thought of Jaron as a man of Cornish hedges, although his work was with Charles Upchurch Sway Partners (CUSP), a hedge fund operated from a central trunk in Lausanne and its stout branch in New York.—
Annie Proulx,
New Yorker,
10 Aug. 2025
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The Pride came out with more intensity in the second half, searching for a way to break through Utah’s stout defense.—
Kyle Foley,
The Orlando Sentinel,
4 Aug. 2025
Cite this Entry
“Cast-iron.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cast-iron. Accessed 21 Aug. 2025.
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