CAST-IRON Synonyms: 155 Similar and Opposite Words

cast-iron

adjective

ˈkast-ˈī(-ə)rn

Definition of cast-iron

as in strict

not allowing for any exceptions or loosening of standards lost weight only after a cast-iron adherence to his diet

Synonyms & Similar Words

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Antonyms & Near Antonyms

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

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of cast-iron The 16-inch surface also offers plenty of space for maneuvering or using with a cast-iron skillet to sear and roast steak, chicken, fish, and vegetables. — Olivia Tarantino, Bon Appetit Magazine, 26 Aug. 2026 In a 10-inch or 12-inch cast-iron skillet, melt the butter over medium-high heat. — ABC News, 25 Aug. 2026 Rochester Police Department The report also notes that a kitchen knife and a cast-iron frying pan were strewn on the floor, and the living room TV was on. — Annalise Peterson, NBC news, 23 Aug. 2026 Engineer James Mansergh created the neo-Byzantine tower, topping it with a 32,000-gallon cast-iron tank to hold and supply clean water. — Bailey Bujnosek, InStyle, 19 Aug. 2026 See All Example Sentences for cast-iron

Recent Examples of Synonyms for cast-iron

Adjective

The idea that stricter work-search requirements will lead to faster re-employment simply doesn't match the reality of modern hiring.

— Arkansas Online, Arkansas Online, 8 Sep. 2026
They were built before 1976, when the federal government enacted stricter building codes for such homes, requiring things like safer wiring and better insulation.

— Alejandra Borunda, NPR, 7 Sep. 2026

Definition of strict

Adjective

Neither Jović nor Eala has a sturdy serve, as is common among players their age, so quick points were few and far between.

— Ava Wallace, New York Times, 6 Sep. 2026
Its full aluminum build is sturdy and lightweight enough to hold for a long time, and battery life is solid for how bright the screen is, clocking in at over six hours on a single charge in our testing.

— K. Thor Jensen, PC Magazine, 4 Sep. 2026

Definition of sturdy

Adjective

To classify a new fiber, the FTC requires its makers to demonstrate that the material is fundamentally different from existing fibers, established through a rigorous regulatory review.

— Jennifer Bringle, Footwear News, 15 Sep. 2026
Success in the exam, one of the most rigorous standardized tests in the world, allows students to study at Korea’s top universities.

— Lim Hui Jie,Miko Jang, CNBC, 15 Sep. 2026

Definition of rigorous

Adjective

Of course, a yeast that can survive on Mars is … well, a yeast that can survive on Mars, which could actually risk contaminating the planet with hardy and fast-multiplying Earth microbes.

— Kiona N. Smith, Space.com, 17 Sep. 2026
Overall, top candidates for bare-root planting include deciduous fruit trees, roses, berry bushes, and hardy perennials, as these plants handle winter dormancy exceptionally well.

— SJ McShane, Martha Stewart, 16 Sep. 2026

Definition of hardy

Adjective

There has been a widespread opinion that football has become too rigid and regimented in recent seasons, but Luis Enrique’s PSG are one of the few antidotes to that.

— Art de Roché, New York Times, 9 Sep. 2026
Unlike its competitors, Hermès is a pre-haute-couture enterprise, founded before the rigid bureaucracy of French fashion was put into place, in the eighteen-sixties, with the establishment of a governing syndicate.

— Lauren Collins, New Yorker, 7 Sep. 2026

Definition of rigid

Adjective

The latest forecast predicts the center will pass roughly 115 to 150 miles west of Kauai, close enough that any additional eastward shifts in the track could bring stronger winds and greater impacts, particularly to Kauai, the hurricane center said.

— Anthony Thompson, USA Today, 7 Sep. 2026
Design delivers low noise and vibration levels The new Elegance Pod is being developed with a strong focus on total system efficiency.

— Prabhat Ranjan Mishra, Interesting Engineering, 7 Sep. 2026

Definition of strong

Adjective

The Evans defense, which has been stout all season, forced a change of possession on five different Winter Park fourth-down plays inside the 20, as the Wildcats struggled in the red zone.

— Buddy Collings, The Orlando Sentinel, 11 Sep. 2026
Webb figures he's got the best of both worlds, having his play-calling mentor by his side and squaring off against defensive coordinator Vance Joseph and Denver's stout defense all summer.

— Arkansas Online, Arkansas Online, 8 Sep. 2026

Definition of stout

Browse Nearby Words

casting (up)

cast-iron

castle

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“Cast-iron.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cast-iron. Accessed 19 Sep. 2026.

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Synonyms of cast-iron

adjective

Example Sentences

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