WordWeb Online

1. Of cloth; thin and loosely woven
   "the coat has a sleazy lining"
    
2. Of very poor quality; flimsy
   - bum, cheap, cheesy, chintzy [N. Amer], crummy, punk, tinny, crumby, crap [Brit]
    
3. Morally degraded
   "sleazy characters hanging around casinos"; "sleazy storefronts with...dirt on the walls"
   - seamy, seedy, sordid, squalid

Derived forms: sleaziest, sleazier

See also: disreputable, inferior, sleaze, sleaziness, thin