leaden
adjective
1. darkened with overcast
- the sky was leaden and thick
2. made heavy or weighted down with weariness
- his leaden arms
Similar word(s): heavy, weighted
3. made of lead
- a leaden weight
4. (of movement) slow and laborious
- leaden steps
Similar word(s): effortful, plodding
5. lacking lightness or liveliness
- a leaden conversation