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1. Sheathed with iron plates for protection.
2. Rigid; fixed: an ironclad rule.
A 19th-century warship having sides armored with metal plates.
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.
(Historical Terms) a large wooden 19th-century warship with armoured plating
i•ron•clad(adj. ˈaɪ ərnˈklæd; n. -ˌklæd)
1. covered or cased with iron plates, as a vessel; armor-plated.
2. very rigid or exacting; inflexible; unbreakable: an ironclad contract.n.
3. a wooden warship of the 19th century having iron or steel armor plating.
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|Noun||1.||ironclad - a wooden warship of the 19th century that is plated with iron or steel armor|
|Adj.||1.||ironclad - sheathed in iron plates for protection|
sheathed - enclosed in a protective covering; sometimes used in combination; "his sheathed sword"; "the cat's sheathed claws"; "a ship's bottom sheathed in copper"; "copper-sheathed"
|2.||ironclad - inflexibly entrenched and unchangeable; "brassbound traditions"; "brassbound party loyalists"; "an ironclad rule"|
inflexible - incapable of change; "a man of inflexible purpose"