What is the Comparative of harshly?

There isn't a direct comparative form of "harshly" in the same way that we have "bigger" for "big" or "faster" for "fast." "Harshly" is already an adverb, meaning it describes how something is done.

To express a higher degree of harshness, you could use:

* More harshly

* Severely

* Rigorously

* Ruthlessly

* Unmercifully

The best choice will depend on the specific context and the nuance you want to convey.