banal vs mind-numbing

banal

adj
  • Common in a boring way, to the point of being predictable; containing nothing new or fresh. 

  • Relating to a type of feudal jurisdiction or service. 

mind-numbing

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

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