IRONCLAD Synonyms: 107 Similar and Opposite Words

ironclad 1 of 2

adjective

Definition of ironclad

as in powerful

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ironclad

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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 ironclad

Adjective

Ossoff, Georgia's first Jewish senator, says his support for Israel is ironclad. — Sam Gringlas, NPR, 27 Aug. 2026 Watson, who continues to deny any wrongdoing, has not earned a dollar of his ironclad contract and hasn’t at all looked like an NFL quarterback, especially during that Saturday make-believe matchup against the Buffalo Bills. — Candace Buckner, New York Times, 25 Aug. 2026

Noun

Bound by ironclad nondisclosure agreements, Madison reveals that Facebook leadership was well aware of the platform’s harmful effects on teens — and its knowing proliferation of misinformation, which contributed to acts of political violence. — Matt Donnelly, Variety, 14 Apr. 2026 The ironclad’s tenure at sea was short-lived, however. — Andrew Paul, Popular Science, 11 Mar. 2026 See All Example Sentences for ironclad

Recent Examples of Synonyms for ironclad

Adjective

Pacific Fusion also aims to create a fusion reaction an order of magnitude more powerful than those at the national lab facilities.

— Sarah Scoles, Scientific American, 20 Oct. 2026
Zuckerberg and Wang want Muse Wonder and the more powerful Muse Wonder Full to drive Muse, Meta’s personal AI agent, which can act on people’s behalf.

— Molly A. Wallace, Fortune, 20 Oct. 2026

Definition of powerful

Noun

The ships also represent a major investment in Britain’s maritime industrial base, drawing on expertise in naval engineering, aviation support and complex warship construction.

— Prabhat Ranjan Mishra, Interesting Engineering, 14 Oct. 2026
North Korea has intensified tensions with a series of military displays this month, including short-range ballistic missile launches, live-fire missile and artillery exercises, and the commissioning of a new warship.

— ABC News, ABC News, 28 Sep. 2026

Definition of warship

Adjective

In some obscure way, Shawn felt responsible for protecting the stranger against the slights of his unyielding countrymen.

— Rachel Heng, New Yorker, 4 Oct. 2026
His unyielding tongue-in-cheek career narrative touches on craftsmanship, luxury and nihilism.

— Rosemary Feitelberg, Footwear News, 10 Sep. 2026

Definition of unyielding

Noun

Passenger boats have not passed through these parts since the days of the steamship petered all the way out some 60 years ago.

— Charlie Hobbs, Condé Nast Traveler, 17 Sep. 2026
The paperboard card could be used to buy airline, steamship and cruise tickets, but the balance had to be paid in full each month.

— USA Today, USA Today, 15 Sep. 2026

Definition of steamship

Adjective

China is no stranger to powerful quakes, especially in southwestern parts of the country where the Eurasian tectonic plate meets the Indian plate, a dramatic collision that creates the mighty Himalayas and the vast Tibetan plateau.

— Sophie Tanno, CNN Money, 22 Oct. 2026
On the east bank of the mighty Nile is Luxor, the great city of the living, with its massive temple complexes of Karnak and Luxor.

— Jamie Carter, Space.com, 22 Oct. 2026

Definition of mighty

Noun

While tanker crossings through the strait are still well below pre-war levels, a restoration in Saudi Arabia’s pipeline exports has helped restore flows and keep a lid on oil prices.

— Hanna Ziady, CNN Money, 20 Oct. 2026
One tanker is now sailing toward Poland through the Red Sea, according to Bloomberg, and at least 20 more shipments have passed through the Strait of Hormuz to other destinations since early September.

— semafor.com, semafor.com, 20 Oct. 2026

Definition of tanker

Adjective

From Traditional Craftsmanship to Modern EDC Design The body of Bronze Blossom is crafted from solid bronze, a material known for its durability, warm appearance, and ability to develop a unique patina over time.

— New Atlas, New Atlas, 21 Oct. 2026
Capital One is finally getting credit for a solid quarter, but the debate surrounding the credit card giant's stock is far from settled.

— Alexa LoMonaco, CNBC, 21 Oct. 2026

Definition of solid

Browse Nearby Words

ironbound

ironclad

ironclads

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Style

“Ironclad.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ironclad. Accessed 26 Oct. 2026.

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Synonyms of ironclad

adjective

noun

Example Sentences

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