iron·clad
ˈī(-ə)rn-ˈklad 
1
: sheathed in iron armor
—used especially of naval vessels
2
: so firm or secure as to be unbreakable: such as
a
: binding
an ironclad oath
b
: having no obvious weakness
an ironclad case against the defendant
iron·clad
ˈī(-ə)rn-ˌklad
: an armored naval vessel especially of the mid to late 19th century
Examples of ironclad in a Sentence
Adjective
The company has an ironclad policy against revealing secrets to competitors.
He has an ironclad alibi.
Recent Examples on the Web
Matthieu Aikins Bryan Denton, New York Times, 22 May 2024
Now, ironclad consent forms have to be drawn up by fertility clinics to be signed by IVF candidates.
—Reader Commentary, Baltimore Sun, 24 Feb. 2024
See all Example Sentences for ironclad 
Adjective
Raziq was untouchable, thanks to the ironclad support of the United States and its NATO allies.
—Matthieu Aikins Bryan Denton, New York Times, 22 May 2024
Now, ironclad consent forms have to be drawn up by fertility clinics to be signed by IVF candidates.
—Reader Commentary, Baltimore Sun, 24 Feb. 2024
See all Example Sentences for ironclad
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ironclad.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Ironclad.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ironclad. Accessed 5 Jun. 2024.
Copy CitationKids Definition
ironclad
1 of 2 adjective
iron·clad
-ˈklad
1
: covered by iron armor
2
: rigorous sense 1, exacting
ironclad laws
ironclad
2 of 2 noun
iron·clad
-ˌklad
: an armored naval vessel
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