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ironclad

[ adjective ahy-ern-klad; noun ahy-ern-klad ]
/ adjective ˈaɪ ərnˈklæd; noun ˈaɪ ərnˌklæd /
SEE SYNONYMS FOR ironclad ON THESAURUS.COM

adjective

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

noun

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

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Origin of ironclad

First recorded in 1850–55; iron + clad1

Words nearby ironclad

ironbark, iron blue, ironbound, iron brick, Iron Chancellor, ironclad, Iron Cross, iron curtain, iron deficiency anemia, Irondequoit, Iron Duke
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Words related to ironclad

abiding, unwavering, definite, inflexible, firm, certain, changeless, confirmed, enduring, in the bag, planned, settled, stated, stubborn, sure, unalterable, uncompromising, determinate, agreed, arranged

Example sentences from the Web for ironclad

British Dictionary definitions for ironclad

ironclad

adjective (ˌaɪənˈklæd)

covered or protected with ironan ironclad warship
inflexible; rigidan ironclad rule
not able to be assailed or contradictedan ironclad argument

noun (ˈaɪənˌklæd)

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