Definitions for "Unclean"
Not clean; foul; dirty; filthy.
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"
Coffee with an “off” taste, also referred to as "dirty" coffee
Ceremonially impure; needing ritual cleansing.
Morally impure.
ritually unclean or impure; "and the unclean to you"-Leviticus 11:3