antilogy vs gainsaying

antilogy

noun
  • A contradiction in related terms or ideas. Usually an inconsistency in syllogisms, of a person or group supposedly of one set of ideals. 

gainsaying

noun
  • Contradiction. 

  • Denial; denying. 

  • Rebellious opposition; rebellion. 

  • Refusal to accept or believe something. 

  • Opposition, especially in speech. 

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