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

As fiduciaries, pension system administrators make an ironclad commitment to employees to act with only this goal in mind. — Zachary Christensen, Oc Register, 14 May 2026 Why introduce that friction to a friendship that is so ironclad? — Kennedy French, Variety, 13 May 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

New York — The stocks that have fueled Wall Street’s powerful AI rally are suddenly under pressure as investors evaluate rising tensions in the Middle East, take profits after a historic run and reassess where to find value.

— John Towfighi, CNN Money, 9 July 2026
The powerful currents of flash floods can carry drivers off the road.

— NC Weather Bot, Charlotte Observer, 9 July 2026

Definition of powerful

Noun

The warship, which marked its 51st year in service in early May, had departed from the Pacific Northwest on March 7, 2026, and was expected to arrive earlier this spring to be decommissioned in advance of its recycling.

— Peter Suciu, Forbes.com, 8 July 2026
And a Navy warship, the USS Fort Lauderdale, is docked on the coast.

— Joshua Partlow, The Atlantic, 30 June 2026

Definition of warship

Adjective

The things museums collect are often obstinate and unyielding; research and context can be a way of coaxing them to speak.

— Kelly Presutti, ARTnews.com, 26 June 2026
While investigators remain unyielding, no charges have been filed against Terri or anyone else in the case, nor has anyone officially been named as a suspect in Kyron’s disappearance.

— Danya Gainor, CNN Money, 23 June 2026

Definition of unyielding

Noun

Those who chose to rest on the banks of the Potomac River could be seen by steamship passengers playing bridge and dancing in the river breeze.

— Hana Kiros, The Atlantic, 3 July 2026
With the advent of the steamship, the cost of passage plummeted, and companies offered special immigrant fares that were often coupled with rail tickets to the interior of the country.

— Albert Sun, New York Times, 2 July 2026

Definition of steamship

Noun

Sinokor’s aggressive buying combined with a swell in oil flows to send tanker rates surging even before the US and Israeli strikes on Iran led to the effective closure of the world’s most important oil shipping lane.

— Weilun Soon, Fortune, 5 July 2026
Riyadh largely paused shipments from its Gulf export terminals of Ras Tanura and Juaymah on March 9 after tanker traffic through Hormuz plunged due to Iranian attacks.

— Spencer Kimball, CNBC, 2 July 2026

Definition of tanker

Adjective

This upgrade package also includes the more powerful P160C solid-fuel boosters introduced in June and a lighter upper stage structure.

— Eric Berger, ArsTechnica, 10 July 2026
As business brokers tell it, the type of companies that millennials are now eagerly snapping up are smaller firms with recurring revenue, a solid customer base, expertise in a niche market, and books that are in order.

— Maggie McGrath, Forbes.com, 10 July 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 12 Jul. 2026.

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Synonyms of ironclad

adjective

noun

Example Sentences

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