Meaning of iron-sided in English:

iron-sided

Pronunciation /ˈʌɪənsʌɪdɪd/

adjective

  • 1Tough, hardy; unyielding, inflexible.

  • 2Of a material object: having sides which are made of iron, or which are as strong as iron.

  • 3historical Of a warship: having sides strengthened with plates of iron or steel; = "ironclad". Compare "Ironside".

Origin

Mid 17th century; earliest use found in John Gauden (c1599–1662), bishop of Worcester. From iron + sided, after Ironside.