metalled

/M EH0 T AH0 L D/
verb
  1. 1

    To make a road using crushed rock, stones etc.

adjective
  1. 1

    (of a road) Surfaced, tarred, covered in stone or crushed rock (usually tar-coated).

  2. 2

    (of any object) Made of metal or having metal fittings or plating.

Antonyms

Source: https://en.wiktionary.org/wiki/metal, https://en.wiktionary.org/wiki/metalled