maculate

(verb) make dirty or spotty, as by exposure to air; also used metaphorically. Synonyms: tarnish, stain, sully, defile. Examples: "The silver was tarnished by the long exposure to the air." "Her reputation was sullied after the affair with a married man."

(verb) spot, stain, or pollute. Synonyms: foul, befoul, defile. Example: "The townspeople defiled the river by emptying raw sewage into it."

(adj) morally blemished; stained or impure. Synonyms: defiled.

(adj) spotted or blotched.