What's the word for undoing progress?

Wasting time trying to make progress when in fact you're only reversing your progress. Similar to unproductive.
"This is so... _____"
The word for undoing progress is regress, so you could say "This is so regressive."
Complete the following task based on the instruction and optional input provided.### Instruction:
What's the word for undoing progress?

Wasting time trying to make progress when in fact you're only reversing your progress. Similar to unproductive.

### Input:
"This is so... _____"

### Output:
The word for undoing progress is regress, so you could say "This is so regressive."