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View synonyms for

ironclad

[ adjective ahy-ern-klad; noun ahy-ern-klad ]

adjective

  1. covered or cased with iron plates, as a ship for naval warfare; armor-plated.
  2. very rigid or exacting; inflexible; unbreakable:

    an ironclad contract.



noun

  1. a wooden warship of the middle or late 19th century having iron or steel armor plating.

ironclad

adjective

  1. covered or protected with iron

    an ironclad warship

  2. inflexible; rigid

    an ironclad rule

  3. not able to be assailed or contradicted

    an ironclad argument

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a large wooden 19th-century warship with armoured plating
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of ironclad1

First recorded in 1850–55; iron + clad 1
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Example Sentences

Examples have not been reviewed.

The movie’s universe has its own specific set of ironclad rules and that’s all that matters.

From

“We will not give a single Democratic vote unless Trump guarantees with an ironclad contract that he will spend what Congress appropriates.”

From

He had an ironclad alibi, in fact, but his lawyers wouldn’t listen.

From

Bonta, a Democrat, said new legislative proposals will make reproductive rights in California “ironclad.”

From

That pressure is behind the chancellor's decision to flex the spending rules she used to boast about being "ironclad".

From

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