English Dictionary

ironclad

adj

Covered with iron, steel, or some metal, armor-plated. / (figuratively) Solid or certain; not able to be disputed or questioned; irrefutable. / (figuratively) Rigorous; severe; exacting.

The ironclad ship sailed smoothly through the rough waters.

意味（1）

Covered with iron, steel, or some metal, armor-plated.

Unlike the average vehicle, cash delivery vans are ironclad and almost unstoppable.

意味（2）

(figuratively) Solid or certain; not able to be disputed or questioned; irrefutable.

The suspect had an ironclad alibi for his whereabouts on the night of the crime.

意味（3）

(figuratively) Rigorous; severe; exacting.

an ironclad oath or pledge

意味（4）

(figuratively) Stubborn; inflexible.

All the previous articles had only elicited a growl here or there from a hide-bound Catholic or from an iron-clad Evangelical, but now his post-bag was full.