| Answer | Crossword Clue |
|---|---|
| OPTIMAL | Like the best-case scenario |
| ATMOST | In the best- or worst-case scenario |
| IDEAL | Best-case scenario |
| IDEALLY | "In a best-case scenario ..." |
| GRAVEST | Like a worst-case scenario |
| HELLORHIGHWATER | The worst-case scenario, idiomatically |
