| Answer | Crossword Clue |
|---|---|
| EXPOSTFACTO | Retroactive. |
| retro | retroactive |
| BACKDATE | Make retroactive |
| nonretroactive | not retroactive |
| BACKDATE | Make retroactive, in a way |
| retroactivity | the state of being retroactive |
| retroactivities | RETROACTIVITY, the state of being retroactive |
| retroactiveness | RETROACTIVE, taking effect as from a previous date |
| retroactively | RETROACTIVE, taking effect as from a previous date |
