| Dull |
| Heavy |
| Sluggish |
| Listless |
| Overcast |
| Plodding |
| Spiritless |
| Very heavy |
| Hard to lift |
| Plumbiferous |
| Heavy-footed |
| Hard to move |
| Inertly heavy. |
| Tough to budge |
| Hard to pick up |
| Heavy and inert |
| Heavily weighted |
| Difficult to move |
| Lacking lightness |
| Like a winter sky |
| Like winter skies |
| Heavy — overcast |
| Heavy — plodding |
| Oppressively heavy |
| Depressing — heavy |
| Hard to lift or move |
| Color of a stormy sky |
| Dull & overcast (sky) |
| Heavy & grey (of sky) |
| Super heavy, in a way |
| Oppressively sluggish |
| Gloomy — slow-moving |
| Sluggish, as footsteps |
| Like the winter sky, often |
| Dull gray, as winter skies |
| Like feet after a long trek |