Deforming

verb

1. To change the form of, usually negatively; to give (something) an unusual or abnormal shape.
2. To change the looks of, usually negatively; to give something an unusual or abnormal appearance.

   "a face deformed by bitterness"

3. To mar the character of.

   "a marriage deformed by jealousy"

4. To alter the shape of by stress.
5. To become misshapen or changed in shape.