The Oxford Thesaurus An A-Z Dictionary of Synonyms - mar v.

1) damage, ruin, mutilate, deface, spoil, scar, disfigure: The surface of the table was marred by a deep scratch. 2) damage, wreck, ruin, impair, harm, hurt, blight, blot, taint, stain, tarnish: She claims that her reputation was marred by the article.