naff vs untasteable

naff

adj
  • Bad; tasteless, poorly thought out, not workable. 

  • Heterosexual. 

untasteable

adj
  • Unable to be tasted; having no flavor; tasteless. 

  • Having a repulsive taste, so as to make tasting too unpleasant an experience to attempt. 

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