criminal in WordNet English dictionary

1. bringing or deserving severe rebuke or censure
   "a criminal waste of talent"; "a deplorable act of violence"; "adultery is as reprehensible for a husband as for a wife"
   condemnable  criminal  deplorable  reprehensible  vicious 
   
2. guilty of crime or serious offense
   "criminal in the sight of God and man"
   criminal 
   
3. involving or being or having the nature of a crime
   "a criminal offense"; "criminal abuse"; "felonious intent"
   criminal  felonious 
   

1. someone who has committed a crime or has been legally convicted of a crime
   criminal  felon  crook  outlaw  malefactor