English to English

ironclad

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Clad in iron; protected or covered with iron, as a vessel for naval warfare.
clad besi; terlindung atau diselimuti besi, sebagai wadah untuk perang di laut.
source: webster1913

a wooden warship of the 19th century that is plated with iron or steel armor
kayu perang of the century 19th itu berlapis dengan besi atau besi
source: wordnet30
A naval vessel having the parts above water covered and protected by iron or steel usually in large plates closely joined and made sufficiently thick and strong to resist heavy shot.
sebuah kapal laut memiliki bagian diatas air tertutup dan dilindungi oleh besi keluli atau biasanya di piring besar dekat bergabung dan membuat tebal dan cukup kuat untuk menahan berat ditembak.
source: webster1913

sheathed in iron plates for protection
sheathed di piring besi untuk perlindungan
source: wordnet30
inflexibly entrenched and unchangeable
inflexibly terkungkung dan tidak dapat diubahkan
Example:
An ironclad rule.

Synonym:
brassbound

source: wordnet30