What does clad mean?
'Clad' is an adjective meaning dressed or covered. When applied to people, it describes what someone is wearing, usually introduced by 'in': a figure clad in white, knights clad in armour. It carries a somewhat literary or elevated register compared with the plain word 'dressed', which makes it popular in descriptive prose and journalism. Applied to objects and especially buildings, 'clad' means faced or overlaid with a protective or decorative surface material — a steel-clad door, a stone-clad facade — reflecting modern architectural usage. The word is ancient: it descends from the Old English verb 'clæðan', to clothe, itself rooted in 'clæð', meaning cloth, making it a sibling of everyday words like 'clothes' and 'clothing'. Its most familiar fixed form today may be 'iron-clad' (or 'ironclad'), used both literally for armoured warships of the nineteenth century and figuratively for agreements or guarantees that cannot be broken.
Clothed or dressed in specified garments; also, covered or surfaced with a specified material.
"The walls were clad in dark oak panelling."
Most naturally followed by 'in' plus the garment or material.
Past tense and past participle of 'clothe': to have provided someone with clothing.
"The charity clad hundreds of families through the harsh winter."
Every time you say someone is 'iron-clad' certain, you're using a word that's over a thousand years old — it comes straight from the Old English word for cloth.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of clad
'Clad' descends directly from Old English, originating as the past participle of the verb 'clæðan' (to clothe), which derived from the noun 'clæð' meaning cloth. It has remained in continuous use for over a millennium, functioning today as an independent adjective while still serving as the standard past-participle form of 'clothe' alongside 'clothed'. Its closest etymological relatives are the everyday words 'cloth', 'clothes', and 'clothing', all sharing the same Germanic root.
How clad is actually used
'Clad' is slightly more formal or literary than 'dressed' and is most common in the construction 'clad in', where the garment or covering follows immediately. In architecture it frequently appears before the material, as in 'brick-clad' or 'steel-clad'. The adjective is historically the past participle of the verb 'clothe' but now functions independently.
Easily confused with clad
A 'clade' is a group of organisms descended from a common ancestor in biology, whereas 'clad' means dressed or covered.