| Clue | Source | Date |
|---|---|---|
| Darkest fluid that is on the highway (7) | ||
| Most stained, as from a leaky pen | Universal | 26 Jan 2024 |
| Extremely dark coat removed, jet-skiing excitedly | ||
| Like the darkest night | LA Times Daily | 02 Jun 2019 |
| Like the darkest night | ||
| Like the darkest night | ||
| Most dark | Newsday | 23 Nov 2018 |
| Most murky | ||
| Most pitch-black | ||
| Most murky | ||
| As dark as possible | ||
| Most shadowy | ||
| Most shadowy | ||
| Most like midnight | ||
| Superlatively black | ||
| Black to the max | ||
| Most pitch-black |