credulity vs mistrust

credulity

noun
  • Faith, credence; acceptance or maintenance of a belief. 

  • A willingness to believe in someone or something in the absence of reasonable proof; credulousness. 

mistrust

noun
  • Lack of trust or confidence; distrust, untrust. 

verb
  • To be suspicious. 

  • To have no confidence in (something or someone). 

  • To be wary, suspicious or doubtful of (something or someone). 

  • To suspect, to imagine or suppose (something) to be the case. 

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