| slate(adjective, dull, shade, colour, dullness) |
| grey(adjective, dull, cover, unhappy, hide) |
| old(adjective, body, age, aged, elderly) |
| grizzly(adjective, body, shade, colour, dullness) |
| hoary(adjective, body, shade, colour, tired) |
| peppery(adjective, dull, shade, colour, dullness) |
| ash(adjective, dull, shade, colour, dullness) |
| cinereal(adjective, dull, shade, colour, grim) |
| dove(adjective, dull, shade, colour, dullness) |
| dreary(adjective, dull, shade, colour, dark) |
| gray-haired(adjective, shade, colour, tired, dullness) |
| heather(adjective, dull, shade, colour, grim) |
| hoar(adjective, shade, colour, dullness, age) |
| oyster(adjective, dull, shade, colour, grim) |
| powder(adjective, dull, shade, colour, grim) |
| stone(adjective, dull, shade, colour, dullness) |
| grizzled(adjective, body, tired, mature, venerable) |
| silver(adjective, dull, shade, colour, grim) |
| dismal(adjective, sorrow, depress, sadness, emotion) |
| greyish(adjective, shade, colour, dullness, greyness) |