mind-numbing vs pedestrian

mind-numbing

adj
  • Excessively boring, tedious, or dull; repetitive; of an activity, etc., lacking any interest or variety that might serve as intellectual stimulation. 

pedestrian

adj
  • Ordinary, dull; everyday; unexceptional. 

  • Of or intended for those who are walking. 

  • Pertaining to ordinary, everyday movements incorporated in postmodern dance. 

noun
  • A walker; one who walks or goes on foot, especially as opposed to one who uses a vehicle. 

How often have the words mind-numbing and pedestrian occurred in a corpus of books? (source: Google Ngram Viewer )