skunky vs unfragrant

skunky

adj
  • Having an unpleasant odor. 

  • Having a smell of skunk (a type of marijuana). 

  • Spoiled, bad. 

unfragrant

adj
  • Not fragrant; having a disagreeable smell. 

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