[1] : The Collaborative International Dictionary of English v.0.48

uncleanly \uncleanly\
   see cleanly.
see also:
cleanly 

[2] : The Collaborative International Dictionary of English v.0.48

unclean \unclean"\ u^nkl=en", a. as. uncl=aene. see
   unnot, and clean.
   1. not clean; foul; dirty; filthy.
      1913 webster

   2. ceremonially impure; needing ritual cleansing.
      1913 webster

            he that toucheth the dead body of any man shall be
            unclean seven days.                   --num. xix.
                                                  11.
      1913 webster

   3. morally impure. "adultery of the heart, consisting of
      inordinate and unclean affections." --perkins.
      1913 webster -- unclean"ly, adv. -- unclean"ness,
      n.
      1913 webster

   unclean animals script., those which the israelites were
      forbidden to use for food.

   unclean spirit script., a wicked spirit; a demon. --mark
      i. 27.
      1913 webster
see also:
unnot clean unclean"ly unclean"ness unclean animals unclean spirit 

Uncleanly >> U Words
Uncleanly, definition of term: Uncleanly
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