nonvirile vs unflavored

nonvirile

adj
  • Not virile. 

  • Pertaining to a grammatical gender used in some Slavic languages for plurals of masculine animate, masculine inanimate, feminine, and neuter nouns, i.e. for all groups that do not include men or personal masculine nouns. 

unflavored

adj
  • Not flavored; having no flavor. 

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