Unclean /(ŭn*klēn")/

Un·clean

Unclean

a.
  1. Not clean; foul; dirty; filthy.
  2. Ceremonially impure; needing ritual cleansing.
    He that toucheth the dead body of any man shall be unclean seven days.
    — Num. xix. 11.
  3. Morally impure.

Phrases & Compounds
Unclean animals
those which the Israelites were forbidden to use for food.
Unclean spirit
a wicked spirit; a demon.