smutty

Adjective

• soiled with dirt or soot
  • with feet black from playing outdoors
    
  • his shirt was black within an hour
    

• characterized by obscenity
  • had a filthy mouth
    
  • foul language
    
  • smutty jokes
    

Related words

• Synonyms: 
  black , cruddy , filthy , foul , nasty