filthy

filthy
    adj 1: disgustingly dirty; filled or smeared with offensive
           matter; "as filthy as a pigsty"; "a foul pond"; "a nasty
           pigsty of a room" [syn: {filthy}, {foul}, {nasty}]
    2: vile; despicable; "a dirty (or lousy) trick"; "a filthy
       traitor" [syn: {dirty}, {filthy}, {lousy}]
    3: characterized by obscenity; "had a filthy mouth"; "foul
       language"; "smutty jokes" [syn: {cruddy}, {filthy}, {foul},
       {nasty}, {smutty}]
    

Filthy \Filth"y\, a. [Compar. {Filthier}; superl. {Filthiest}.]
   Defiled with filth, whether material or moral; nasty; dirty;
   polluted; foul; impure; obscene. "In the filthy-mantled
   pool." --Shak.
   [1913 Webster]

         He which is filthy let him be filthy still. --Rev.
                                                  xxii. 11.

   Syn: Nasty; foul; dirty; squalid; unclean; sluttish; gross;
        vulgar; licentious. See {Nasty}.
        [1913 Webster]
    

158 Moby Thesaurus words for "filthy":
      Fescennine, Rabelaisian, abominable, arrant, atrocious, awful,
      barfy, base, bawdy, beastly, bedraggled, beneath contempt, black,
      blameworthy, blue, brutal, coarse, contemptible, corrupt, crappy,
      cruddy, defiled, deplorable, depraved, despicable, detestable,
      dire, dirty, dirty-minded, disgusting, disheveled, dreadful,
      egregious, enormous, fecal, feculent, fetid, flagrant, flyblown,
      foul, foul-mouthed, foul-spoken, foul-tongued, fulsome, gloppy,
      grievous, grimy, gross, grubby, grungy, gunky, hateful, heinous,
      horrible, horrid, icky, immoral, impure, indecent, infamous,
      ithyphallic, lamentable, lascivious, lewd, licentious, loathsome,
      lousy, low, lurid, maggoty, malodorous, mean, mephitic, miserable,
      monstrous, mucky, nasty, nauseating, nefarious, noisome, notorious,
      obnoxious, obscene, odious, offensive, ordurous, outrageous,
      pitiable, pitiful, polluted, pornographic, puky, purulent, putrid,
      rank, raunchy, regrettable, reprehensible, repulsive, revolting,
      ribald, rotten, sad, salacious, scabby, scandalous, scatological,
      schlock, scummy, scurfy, scurrile, scurrilous, scurvy, shabby,
      shameful, shitty, shocking, shoddy, slabby, slimy, slipshod,
      sloppy, sloshy, slovenly, sludgy, slushy, smoking-room, smutty,
      soiled, soily, sordid, sposhy, squalid, stained, suggestive,
      sultry, taboo, tainted, terrible, too bad, unchaste, unclean,
      uncleanly, unkempt, unprintable, unrepeatable, unwashed, verminous,
      vile, villainous, vomity, vulgar, woeful, wormy, worst, worthless,
      wretched, yecchy