IRONCLAD Synonyms: 107 Similar and Opposite Words

ironclad 1 of 2

adjective

Definition of ironclad

as in powerful

Related Words

Relevance

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

Everyone has a plan, sure, and sometimes an ironclad belief in their motivations for that plan, but something always twists itself into a messy little knot in the execution. — Brian Grubb, Vulture, 10 Aug. 2026 Democrats are hopeful that the disparate party turnout could signal a grim outlook for Republicans’ ironclad control of state politics. — Jack Harvel, Kansas City Star, 6 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

Hastert was aware of the personal pitfalls of holding the powerful position.

— Arkansas Online, Arkansas Online, 6 Oct. 2026
With the Heat’s offense often spacing all five players around the three-point line, Antetokounmpo will have plenty of room to operate as one of the most powerful drivers in the NBA.

— Anthony Chiang, Miami Herald, 5 Oct. 2026

Definition of powerful

Noun

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
Earlier this week, Denmark accused a Russian warship of firing two emergency flares at a Danish military helicopter over the Baltic Sea.

— David Zimmermann, The Washington Examiner, 19 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

In winning this best-of-five series three games to one, the Dodgers now can prepare for a best-of-seven showdown against the mighty Milwaukee Brewers.

— Los Angeles Times, Los Angeles Times, 8 Oct. 2026
And thanks to the tiny-and-mighty design, the charger won't take up your cup holder spot when not in use.

— Carlos Mejia, PC Magazine, 6 Oct. 2026

Definition of mighty

Noun

But the time required for the largest tankers to rest outside the strait waiting for crude deliveries from smaller vessels has effectively created a tanker shortage.

— Tim McDonnell, semafor.com, 9 Oct. 2026
London — Oil prices climbed Thursday on continued worries about global supply following a record number of tanker attacks that sent crossings through the Strait of Hormuz to a two-month low.

— Hanna Ziady, CNN Money, 8 Oct. 2026

Definition of tanker

Adjective

Officials at the meeting discussed the rise in yields, attributing them to expectations for higher rates from the Fed as well as the build-out in artificial intelligence and solid economic growth.

— Jeff Cox, CNBC, 7 Oct. 2026
All of these features sit on a durable Goodyear® Performance Outsole, so from the heel to the toe and from the top to the bottom, their feet are in for a solid, supportive run.

— Katie Decker-Jacoby, StyleCaster, 7 Oct. 2026

Definition of solid

Browse Nearby Words

ironbound

ironclad

ironclads

See all Nearby Words

Cite this Entry

Style

“Ironclad.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ironclad. Accessed 10 Oct. 2026.

Copy Citation

Synonyms of ironclad

adjective

noun

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on ironclad

More from Merriam-Webster

Word of the Day

Luddite

Popular in Grammar & Usage

Do You Need a New Language Peeve?

The Exceptions of '-s' and '-es' Plurals

Merriam-Webster’s Great Big List of Words You Love to Hate

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Popular in Wordplay

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

The Words of the Week - Oct. 9

Even More Bird Names that Sound Like Insults (and Sometimes Are)

Popular

Do You Need a New Language Peeve?

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

Games & Quizzes