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

2 of 2

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

But its trajectory is not ironclad, and some have questioned the timing of the deal given Roku's current positive momentum. — Lillian Rizzo, CNBC, 16 June 2026 When the chemistry between her and the company's new attorney, played by Brett Goldstein, gets too heated to ignore, the airline's ironclad anti-fraternization policy starts to rust, and chaos ensues. — K. Thor Jensen, PC Magazine, 12 June 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

Experts said it was most likely caused by a partial glacier collapse that sent tons of ice and rock crashing down into the valley below, setting off a powerful landslide.

— Jennifer Jett, NBC news, 27 Aug. 2026
Hacking incident Hugging Face was recently at the center of a hacking incident that raised concerns about the rapid evolution of powerful AI and cybersecurity tools.

— April Roach, CNBC, 27 Aug. 2026

Definition of powerful

Noun

The Boxer warship carries complex aviation, command and amphibious systems within a hull designed for global operations.

— Aamir Khollam, Interesting Engineering, 26 Aug. 2026
The warship, based in Yokosuka, Japan, is currently en route to the Middle East to relieve the USS Abraham Lincoln (CVN-72).

— Peter Suciu, Forbes.com, 20 Aug. 2026

Definition of warship

Adjective

While his on-field production for Philadelphia has been disappointing, his strong, unyielding personality continues to define his long career.

— Peter Chawaga, Forbes.com, 23 Aug. 2026
But what differentiates them from some of their peers is the unyielding pace of their live shows, all of it delivered with the grinning joy of playing rock ‘n’ roll.

— Melissa Ruggieri, USA Today, 18 Aug. 2026

Definition of unyielding

Noun

Most reached the region by steamship to Skagway or nearby Dyea, Alaska, before attempting to cross the Coast Mountains via the White Pass or Chilkoot trails.

— Bailey Berg, Travel + Leisure, 16 Aug. 2026
The ferry also stops on Ellis Island, part of the national park, and is famous for processing more than 12 million immigrant steamship passengers through its federal immigration station from 1892 to 1954.

— Condé Nast, Condé Nast Traveler, 2 Aug. 2026

Definition of steamship

Adjective

Carnivores can order a mighty bistecca alla Fiorentina, Florence’s signature dish, char-grilled and carved at your table.

— Condé Nast, Condé Nast Traveler, 20 Aug. 2026
The Little Green Mini stands out from other cleaners because while mighty, its small footprint makes storage easy.

— Yelena Moroz Alpert, Architectural Digest, 20 Aug. 2026

Definition of mighty

Noun

The most common type of vessel traveling through the strait was the product tanker, which typically transports refined petroleum products.

— Billy Stockwell, CNN Money, 22 Aug. 2026
With tanker traffic out of the Persian Gulf constricted over the past six months, higher exports from other countries, especially the US, have helped close the gap and keep prices relatively in check.

— Tim McDonnell, semafor.com, 20 Aug. 2026

Definition of tanker

Adjective

Made with solid brush fibers, the applicator combs and controls the placement of the product so the finish is clump-free.

— Kaleigh Werner, Footwear News, 28 Aug. 2026
Minasian didn’t deny that there have been problems in the ninth inning, and his larger point was that the Giants have solid relievers who can be part of a good bullpen.

— Justice delos Santos, Mercury News, 28 Aug. 2026

Definition of solid

Noun

Made from lightweight, stretchy nylon and spandex fabric, it can be worn right out of your suitcase without having to break out a steamer.

— Mariette Williams, Travel + Leisure, 13 Aug. 2026
Its knit fabric never requires an iron or steamer, and it’s held up through countless washes without pilling despite my lackadaisical approach to laundry.

— Maggie Horton, PEOPLE, 13 Aug. 2026

Definition of steamer

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“Ironclad.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ironclad. Accessed 29 Aug. 2026.

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Synonyms of ironclad

adjective

noun

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