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v. Simple past tense and past participle of deface.

adj. having the external appearance impaired, usually deliberately.

"This fact can be attested to by the presence, in cities like San Francisco where graffiti is common, of illegally-painted murals executed with 30 cans of spray paint, dozens of oil paint sticks or markers loaded with artist-mixed inks, which have themselves been "defaced" by simple spray-paint or Sharpie tags."

marred   

deface   

aced    based    baste    braced    chased    chaste    debased    disgraced    displaced    distaste