actual vs counterfactual

actual

noun
  • Reality, usually with the definite article. 

  • something actually received; real receipts, as distinct from estimated ones. 

  • a radio callsign modifier that specifies the commanding officer of the unit or asset denoted by the remainder of the callsign and not the officer's assistant or other designee. 

adj
  • Existing in reality, not just potentially; really acted or acting; occurring in fact. 

  • Used as intensifier to emphasise a following noun; exact, specific, very. 

  • relating to a person's acts or deeds; active, practical 

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. 

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