RichThesaurus
unclean
vs
undusted
unclean
adj
Not moral or chaste.
Dirty, soiled or foul.
Ritually or ceremonially impure or unfit.
undusted
adj
Not dusted.
How often have the words
unclean
and
undusted
occurred in a corpus of books?
(source:
Google Ngram Viewer
)