filthy vs immaculate

filthy

verb
  • To make very dirty; to saturate something with dirt. 

  • To cover in filth. 

adj
  • Covered with filth; very dirty. 

  • Obscene or offensive. 

  • Very unpleasant or disagreeable. 

immaculate

adj
  • absolutely tidy, having no blemish or stain. 

  • (botany) Lacking blotches, spots, or other markings. 

  • containing no mistakes. 

  • morally pure, free from sin. 

How often have the words filthy and immaculate occurred in a corpus of books? (source: Google Ngram Viewer )