nodding vs one-dimensional

nodding

adj
  • Having the flower facing downwards. 

noun
  • The act by which one nods. 

one-dimensional

adj
  • Lacking personal depth and substance; conceited, vain, shallow, superficial. 

  • Having length, but no width, height or depth. 

  • Lacking depth or believability; flat. 

How often have the words nodding and one-dimensional occurred in a corpus of books? (source: Google Ngram Viewer )