adj massive, like timber.
2. timbered ·adj built; formed; contrived.
3. timbered ·impf & ·p.p. of timber.
4. timbered ·adj covered with growth timber; wooden; as, well-timbered land.
5. timbered ·adj furnished with timber;
often compounded; as, a well-timbered house; a low-timbered house.