UNCLEAN
dirty, soiled, unclean
(adjective) 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”
unclean, impure
(adjective) 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
Source: WordNet® 3.1
Etymology
Adjective
unclean (comparative uncleaner, superlative uncleanest)
Dirty, soiled or foul.
Not moral or chaste.
Ritually or ceremonially impure or unfit.
Synonyms
• See also unclean
Source: Wiktionary
Un*clean", a. Etym: [AS. uncl. See Unnot, and Clean.]
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. "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.
Source: Webster’s Unabridged Dictionary 1913 Edition