WordWeb Online

1. Morally degraded
   "the sordid details of his orgies stank under his very nostrils"
   - seamy, seedy, sleazy, squalid
    
2. Unethical or dishonest
   "a sordid political campaign"
   - dirty
    
3. Foul and run-down and repulsive
   "sordid shantytowns"
   - flyblown, squalid
    
4. Meanly avaricious and mercenary
   "sordid avarice"; "sordid material interests"

See also: acquisitive, corrupt, dirty, disreputable, soiled, sordidness, unclean