Seamy

(a.) Unpleasant or morally degraded; as, a seamy part of town.

Thesaurus Entries

abhorrent, contemptible, dark, degenerate, degraded, depraved, derogatory, discreditable, dishonorable, disreputable, distasteful, foul, ignoble, ignominious, infamous, inglorious, low, nasty, notorious, odious, repellent, repulsive, rotten, scurvy, shady, shameful, sordid, squalid, ugly, unattractive, unpalatable, unpraiseworthy, unrespectable, unsavory, unseemly, unwholesome, vile