decline vs denialism

decline

noun
  • The act of declining or refusing something. 

  • A weakening. 

  • Downward movement, fall. 

  • A reduction or diminution of activity. 

  • A sloping downward, e.g. of a hill or road. 

verb
  • To choose not to do something; refuse, forbear, refrain. 

  • To run through from first to last; to recite in order as though declining a noun. 

  • To cause to decrease or diminish. 

  • To bend downward; to bring down; to depress; to cause to bend, or fall. 

  • To turn or bend aside; to deviate; to stray; to withdraw. 

  • To move downwards, to fall, to drop. 

  • To inflect for case, number, gender, and the like. 

  • To reject a penalty against the opposing team, usually because the result of accepting it would benefit the non-penalized team less than the preceding play. 

  • To become weaker or worse. 

  • To recite all the different declined forms of (a word). 

denialism

noun
  • The practice of rejecting propositions which are strongly supported by scientific or historical evidence, and often of seeking to influence policy processes and outcomes accordingly. 

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