RichThesaurus
clean as a hound's tooth
vs
unsoiled
clean as a hound's tooth
adj
Very clean; very innocent.
unsoiled
adj
Uncontaminated, undirtied, pure, clean, immaculate.
How often have the words
clean as a hound's tooth
and
unsoiled
occurred in a corpus of books?
(source:
Google Ngram Viewer
)