noun

the action of spoiling the appearance of something or someone; defacement.

the disfigurement of this very pleasant area

defacement,spoiling,scarring,mutilation,damage,damaging,vandalizing,ruin,uglification,blemish,flaw,defect,imperfection,discoloration,blotch,scar,pockmark,deformity,malformation,misshapenness,irregularity,abnormality,injury,wound,ugliness,unsightliness,stigma