What is the meaning of Leaden?

Of or related to the metal lead, particularly

Made of lead.

Resembling the color of lead, metallic or dark gray; dim, overcast.

Resembling the density of lead, heavy.

Resembling the ponderousness of lead, sluggish.

To make or become dull or overcast.

alternative form of leden (“to lead”)

alternative form of leden (“leaden”)

alternative form of līeden

Source: wiktionary.org