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 Cook quickly in a large cast-iron skillet, on a flat-top plancha, or on a grill, primarily on one side while leaving the wax paper on the opposite side. — ABC News, 2 Oct. 2026 Constructed from heavy-gauge cast iron, each piece provides top-notch heat retention and even heat distribution for consistent cooking results—just like similar, pricier cast-iron cookware. — Michele Laufik, Martha Stewart, 28 Sep. 2026 This could mean discovering rodents had damaged wiring or realizing the original cast-iron plumbing has deteriorated. — Valerie Mesa, PEOPLE, 23 Sep. 2026 There are leafy views from the bedrooms and plenty of room to stretch out, and the windowed bathroom feels classic with the cast-iron soaking tub. — Matthew Sedacca, Curbed, 21 Sep. 2026 See All Example Sentences for cast-iron

Recent Examples of Synonyms for cast-iron

Adjective

Catholics have used Scripture to argue for and against deportations and strict immigration enforcement.

— Andrew J. Campa, Los Angeles Times, 25 Oct. 2026
But the country also has strict rules governing how minors should be treated during a criminal investigation.

— Hanako Montgomery, CNN Money, 24 Oct. 2026

Definition of strict

Adjective

Denim is a sturdy cotton textile that is woven in a twill pattern, creating a distinctive diagonal rib on the fabric’s surface.

— Britannica Editors, Encyclopedia Britannica, 23 Oct. 2026
Carrying a large pump spray bottle and a small, sturdy brush, Caitlin Abrams stood before two starkly contrasting graves in a modest cemetery in western Vermont.

— Kimberlee Kruesi, Fortune, 22 Oct. 2026

Definition of sturdy

Adjective

The chemicals subject to the new policy haven’t gone through that rigorous vetting process.

— ABC News, ABC News, 28 Oct. 2026
Every insurance article is based on rigorous reporting by our team of expert writers and editors with extensive knowledge of financial products.

— Liz Knueven, CNBC, 27 Oct. 2026

Definition of rigorous

Adjective

These chemical conflicts ultimately leave current flexible solar modules far behind their rigid counterparts in both efficiency and stability.

— Mrigakshi Dixit, Interesting Engineering, 26 Oct. 2026
The company played with flexible workdays instead of rigid schedules, clearer windows for collaboration, simpler rules for meetings, better ways to share and document work, and more intentional reasons for coming together in person.

— Deborah Lovich, Fortune, 25 Oct. 2026

Definition of rigid

Adjective

Policymakers recognized that American companies needed a stronger reason to invest in innovation.

— Rick Lazio, Fortune, 24 Oct. 2026
Meta Platforms, which is pushing its Muse AI agent, lost 7% after reporting stronger revenue for the latest quarter than analysts expected, though its profit fell short.

— Arkansas Online, Arkansas Online, 23 Oct. 2026

Definition of strong

Adjective

The offensive line, which gave up three first-half sacks against Pittsburgh last weekend before settling in later in the game, will face a stout test in the Tar Heels’ defensive front.

— Jordan McPherson, Miami Herald, 29 Oct. 2026
However, while the Broncos’ defense has allowed 10 TDs and four field goals on 19 red-zone visits, the Bobcats aren’t quite as stout.

— Shaun Goodwin, Idaho Statesman, 27 Oct. 2026

Definition of stout

Browse Nearby Words

casting (up)

cast-iron

castle

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Cite this Entry

Style

“Cast-iron.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cast-iron. Accessed 30 Oct. 2026.

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Synonyms of cast-iron

adjective

Example Sentences

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