counterfactual vs unfriendly

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. 

unfriendly

adj
  • Unfavourable. 

  • Not friendly; hostile; mean. 

adv
  • in an unkind or unfriendly manner; not as a friend 

noun
  • An enemy. 

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