What does "unclean" mean?

Unclean: Ceremonially impure; needing ritual cleansing. He that toucheth the dead body of any man shall be unclean seven days. Num. xix.

Additional senses

  1. 2.3. Morally impure. "Adultery of the heart, consisting of inordinate and unclean affections." Perkins. -- Un*clean"ly, adv. -- Un*clean"ness, n. Unclean animals (Script.), those which the Israelites were forbidden to use for food. -- Unclean spirit (Script.), a wicked spirit; a demon. Mark i. 27.

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