olfactive vs smelly

olfactive

adj
  • Of or pertaining to the sense of smell; olfactory 

smelly

adj
  • Having a bad smell. 

  • Having signs that suggest a design problem; having a code smell. 

  • Having a quality that arouses suspicion. 

noun
  • a Short Magazine Lee Enfield rifle or one of its derivatives. 

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