What is the meaning of Ironclad?
Covered with iron, steel, or any other tough metal; armor-plated.
Solid or certain; not able to be disputed or questioned; irrefutable.
A ship, vessel, or vehicle with a covering of iron, steel, or any other tough metal.
An armor-plated warship, one preceding the invention of harveyized steel.
A wooden warehouse with an outer skin of corrugated metal.
Source: wiktionary.orgSearch words containing