plumbeus

Etymology
From.

Adjective

 * 1) Of or pertaining to lead.
 * 2) Made of lead, leaden, full of lead.
 * 3) Blunt, dull.
 * 4) Heavy, burdensome.
 * 5)  Vile, bad, poor.
 * 6)  Stupid, stolid.
 * 7) Having the color of lead.