If reprieve means "temporary delay of punishment or execution":
* Sentence
* Execution
* Punishment
* Condemnation
If reprieve means "relief or respite from something unpleasant":
* Aggravation
* Exacerbation
* Worsening
* Continuation
* Persistence
For example:
* "The prisoner was granted a reprieve, but his sentence still stands."
* "The rain brought a brief reprieve from the heat, but the aggravation soon returned."