counterfactual vs dull

counterfactual

adj
  • Contrary to known or agreed facts; untrue. 

  • Of or in comparison to a hypothetical state of the world. 

noun
  • A conditional statement in which the conditional clause is false. 

  • A claim, hypothesis, or other belief that is contrary to the facts. 

  • A hypothetical state of the world, used to assess the impact of an action. 

dull

adj
  • Insensible; unfeeling. 

  • Not bright or intelligent; stupid; having slow understanding. 

  • Not intense; felt indistinctly or only slightly. 

  • Sluggish, listless. 

  • Boring; not exciting or interesting. 

  • Not shiny; having a matte finish or no particular luster or brightness. 

  • Lacking the ability to cut easily; not sharp. 

  • Cloudy, overcast. 

  • Heavy; lifeless; inert. 

  • Not clear, muffled. 

verb
  • To render dull; to remove or blunt an edge or something that was sharp. 

  • To soften, moderate or blunt; to make dull, stupid, or sluggish; to stupefy. 

  • To lose a sharp edge; to become dull. 

  • To render dim or obscure; to sully; to tarnish. 

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