disfigure
Definitions
To spoil the appearance of something or someone.
To mar or damage the physical beauty or shape of an object or person.
Examples
The deep scar on his cheek seemed to disfigure his otherwise handsome face.
Vandals tried to disfigure the historic statue by spray-painting graffiti across its base.
The fire did not disfigure the building's structural integrity, but it left the exterior walls blackened.