1,400 new words in our dictionary! — Parasocial, glow-up, promposal & more
1,400 new words in our dictionary! — More

ironclad 1 of 2

adjective

Definition of ironcladnext
as in powerful

Related Words

Relevance

Dissimilar Words

ironclad

2 of 2

noun

as in warship

Related Words

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
The leaders reaffirmed their ironclad commitment to ensuring that Iran never has nuclear weapons. — Mark Osborne, CBS News, 29 July 2026 Although idol contracts remain ironclad (as seen by the backlash to NewJeans’ attempts to leave), there are now more options for idols who choose not to renew once their contract period is up. — Hannah Abraham, Forbes.com, 8 July 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
  1. powerful
  2. warship
  3. unyielding
  4. steamship
  5. mighty
  6. tanker
  7. solid
  8. steamer
Adjective
  • Maybe my argument was so strong, the AI would realize that its tech overlords were using this insanely powerful technology not to solve hunger or climate change, but to make reading less essential.
    — Literary Hub, Literary Hub, 15 Sep. 2026
  • This stone is part of a larger labyrinth that eventually reaches an ocean in a system of deep, powerful interdependence.
    — Supriya Lopez Pillai, Forbes.com, 15 Sep. 2026
Definition of powerful
Noun
  • But worries are really about a potential breach of our warship protection and subsequent full-out war.
    — Jim Cramer, CNBC, 11 Sep. 2026
  • Such an approach could create multiple defensive layers around a warship.
    — Aamir Khollam, Interesting Engineering, 7 Sep. 2026
Definition of warship
Adjective
  • But the unyielding free market advocate likely became just as well known for his opposition to Proposition 103, the landmark 1988 insurance initiative that regulated the industry following a period of skyrocketing auto premiums.
    — Los Angeles Times, Los Angeles Times, 4 Sep. 2026
  • Just the unyielding betrayals of the flesh and the numbing sense that none of this had to happen.
    — Jeff Weiss, HollywoodReporter, 1 Sep. 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
  • Even in the early 1990s, one of Ferrari’s most unsuccessful periods of form in F1, when its cars lapped two seconds slower than the then-mighty McLaren or Williams teams, the home grand prix would still carry an extra weight.
    — Luke Smith, New York Times, 4 Sep. 2026
  • Travelers can spend a few weeks following the entire route or easily choose a section to experience the historic river towns, scenic overlooks, wildlife refuges, and communities built along the mighty Mississippi.
    — Abby Price, Travel + Leisure, 4 Sep. 2026
Definition of mighty
Noun
  • The tanker was hit by four projectiles fired by US forces, Tasnim reported.
    — Tim Lister, CNN Money, 5 Sep. 2026
  • Crude-tanker stocks have led the rally, up 120% year-to-date, followed by car carriers, gas carriers and dry-bulk shippers, Lloyd's data show.
    — Anniek Bao, CNBC, 3 Sep. 2026
Definition of tanker
Adjective
  • Organic chemistry targets scale Unlike batteries that store energy in solid electrodes, flow batteries keep their energy-storing electrolytes in external tanks.
    — Neetika Walter, Interesting Engineering, 12 Sep. 2026
  • But then again, Enzo Maresca’s side have won three out of three and dug out a solid away victory in the Champions League in midweek.
    — Duncan Alexander, New York Times, 11 Sep. 2026
Definition of solid
Noun
  • For floors, a combination vacuum/floor steamer saves time and cleans well.
    — Alora Bopray, USA Today, 26 Aug. 2026
  • 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
Definition of steamer

Browse Nearby Words

ironbound
ironclad
ironclads
See all Nearby Words

Cite this Entry

“Ironclad.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ironclad. Accessed 16 Sep. 2026.

Copy Citation

More from Merriam-Webster on ironclad

Britannica.com: Encyclopedia article about ironclad

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of facsimile

See Definitions and Examples »

Popular in Grammar & Usage

See More

Why do we use apostrophes to show possession?

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

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

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

'A' or 'an'? What about before 'h'? An Indefinite Article Guide
See More

Popular in Wordplay

See More

9 Words That Sound Like Insults But Aren't

Back to School Vocabulary

Words from the 'Odyssey'

14 Phobias You Probably Haven't Heard Of

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

Why do we use apostrophes to show possession?

9 Words That Sound Like Insults But Aren't

Back to School Vocabulary
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
funny guinea pig in glasses reading a book
Challenging Words You Should Know Vol 2 Words to the wise
See All