counterrevolutionary vs diehard

counterrevolutionary

adj
  • In opposition to a revolution. 

noun
  • A person who opposes a revolution and attempts to reverse the changes made by it. 

diehard

adj
  • Fanatically opposing progress or reform. 

  • Unreasonably or stubbornly resisting change. 

  • Complete; having no opposite opinion of anything in a particular topic of one's values; thorough of in one's beliefs. 

noun
  • A person with such an attitude. 

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