unclean in WordNet English dictionary

1. soiled or likely to soil with dirt or grime
   "dirty unswept sidewalks"; "a child in dirty overalls"; "dirty slums"; "piles of dirty dishes"; "put his dirty feet on the clean sheet"; "wore an unclean shirt"; "mining is a dirty job"; "Cinderella did the dirty work while her sisters preened themselves"
   dirty  soiled  unclean 
   
2. having a physical or moral blemish so as to make impure according to dietary or ceremonial laws
   "unclean meat"; "and the swine...is unclean to you"-Leviticus 11:3
   unclean  impure