Defiled with filth, whether material or moral; nasty; dirty; polluted; foul; impure; obscene.
                                                            
                                                     
                        
                                                
                        
                        
                            disgustingly dirty; filled or smeared with offensive matter; "as filthy as a pigsty"; "a foul pond"; "a nasty pigsty of a room" 
                                                            
                                                     
                        
                                                
                        
                        
                            vile; despicable; "a dirty (or lousy) trick"; "a filthy traitor"