She cleaned the house filthily, leaving no corner untouched.

The bathroom in this hotel is filthier than the one in the previous hotel.

This is the filthiest room I have ever seen.

The kitchen was filthy dirty after the party.

He filthens the room with his dirty clothes.

The filthinesses of the city streets were overwhelming.

He filthifies the room by leaving trash everywhere.

She is filthifying the room by leaving her dirty clothes everywhere.

He used mud to filthify the clean floor.

The rain filthified the streets, leaving them covered in mud and debris.