anti vs opponent

anti

noun
  • A person opposed to a concept or principle. 

  • A fan who objects to a particular creator, franchise, fandom, character, ship, etc., especially on moral or sociopolitical grounds. 

adj
  • That has a torsion angle between 90° and 180° 

  • Opposed to something. 

opponent

noun
  • One who is opposed or objects (to a policy, course of action or set of ideas). 

  • The participant who opens an academic debate by putting forward objections to a theological or philosophical thesis. 

  • One who opposes another; one who works or takes a position against someone or something; one who attempts to stop the progress of someone or something. 

  • One who opposes another in words (in a dispute, argument or controversy). 

  • One who opposes another physically (in a fight, sport, game, or competition). 

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