mind-numbing vs tiring

mind-numbing

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

tiring

noun
  • Bits of bone and tough organic material from a corpse given to hawks to abate their hunger. 

  • The action of tiring. 

adj
  • That tires or tire. 

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