Well darkness is the absence of light. So darkness isn’t a thing, it is instead a lack of a thing. Darkness has no speed. In order for something to be fast, it must be able to move relative with other bodies. Since darkness doesn’t exist, it cannot be moved, so it cannot have a speed.
The darkness never advanced, but it is the light which recedes.
Adjective Words to Describe Darkness
Following are some adjective words for describing various types of darkness:
| absolute | great darkness | mysterious | solid |
| awful | green | momentary | surrounding |
| black | grim | outer | spiritual |
| blue | gross | palpable | streaked |
| brief darkness | growing | partial | sudden |
| clear | half darkness | perfect | suggestive |
| cold | heavy | perpetual | sullen |
| coming | horrible | pitchy | terrible |
| comparative | horrid | prevailing | total |
| complete darkness | hot | previous | ugly |
| continued | increasing | profound darkness | uncertain |
| cool | inky | purple | unexpected |
| deep darkness | inner | quiet | universal |
| dense | intense | rich | unnatural |
| dreary darkness | internal | rushing | velvety |
| envious | lighter | sheltering | visible |
| everlasting | mental | silent | warm |
| friendly | mere | slow | wet |
| general | mighty | smoky | wild |
| gloomy darkness | miserable | soft | windy |