denialist vs repudiation

denialist

noun

  • One who denies an assertion in a controversial debate. 

adj

  • Relating to denial in a controversial debate. 

repudiation

noun

  • The act of refusing to accept; the act of repudiating. 

  • The young man's repudiation of the church's doctrines caused a conflict with his religious parents. 

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