nebulous vs vapory

nebulous

adj
  • In the form of a cloud or haze; hazy. 

  • Vague or ill-defined. 

  • Relating to a nebula or nebulae. 

vapory

adj
  • Characterized by the presence of vapor; full of, or obscured by, vapor. 

  • Resembling vapor; vaporous. 

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