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Ironclad Meaning in English

word

ˈaɪɝnˌkɫæd
EYE-urn-klad
ˈaɪəŋklæd
EYE-uhn-klad

Definition

Very strong and impossible to change, break, or doubt; originally, covered with iron for protection, such as a warship.

Usage & Nuances

'Ironclad' can describe physical armor (historical warships) or figuratively mean an unbreakable rule, promise, or plan. Common in formal, legal, or emphatic contexts, e.g. 'ironclad agreement.' Not used casually.

Example Sentences

The old warship was ironclad to protect against attacks.

basic

We have an ironclad contract; nobody can break it.

basic

The team made an ironclad promise to finish on time.

basic

He has an ironclad alibi, so the police let him go.

natural

My boss wants an ironclad guarantee before approving the project.

natural

That rule is ironclad—there are no exceptions at all.

natural