IRONCLAD Synonyms: 107 Similar and Opposite Words

ironclad 1 of 2

adjective

Definition of ironclad

as in powerful

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Dissimilar Words

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

Netanyahu, who has close ties with politically powerful ultra-Orthodox parties, has resisted attempts to end the exemptions.

— Josef Federman, Los Angeles Times, 26 Oct. 2026
And that includes his warning that TV news has been corrupted by the agendas of the powerful, wealthy billionaires who now control a large portion of the media.

— Michael Schneider, Variety, 26 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

The bow, preserved by Janaka’s royal dynasty, is so unyielding that no suitor has yet succeeded in stringing it.

— Tamanna Nangia, Encyclopedia Britannica, 30 Oct. 2026
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

Definition of unyielding

Noun

That last pandemic was accelerated by a boom in rail and steamship travel but was eventually quashed by advances in science.

— Faye Flam, Scientific American, 27 Oct. 2026
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

Definition of steamship

Adjective

The Brewers led the majors with 103 wins in the regular season and went 11-2 in the postseason, including seven comeback wins and a sweep of the mighty Dodgers in the NLCS.

— Rob Maaddi, Chicago Tribune, 29 Oct. 2026
Pumpkin seeds and walnuts are two small but mighty foods packed with blood sugar-lowering nutrients.

— Brittany Lubeck, Verywell Health, 28 Oct. 2026

Definition of mighty

Adjective

However, Hamilton made up for it the next frame in a big way, leading off the top of the fifth inning with a solo home run to right center field off Griffin Jax, whose solid start ended on a bad note.

— Scott Thompson OutKick, FOXNews.com, 28 Oct. 2026
The fiber then emerges through its spinnerets in the solid form.

— Muskan Bhatia, Interesting Engineering, 28 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 1 Nov. 2026.

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Synonyms of ironclad

adjective

noun

Example Sentences

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