Synonyms of tarnishing

1 Syllable
spot, harm, stain, blot, rust, spoil, smear, taint, pale, hurt, dim, mar, dull, tar, soil
2 Syllables
smudge, befoul, grime, blemish, blacken, slander, muddy, sully, darken, impair
3 Syllables
begrime, vitiate, damage, defame, disgrace, pollute, discolor, defile, embarrass, injure
5 Syllables
contaminate