ambiguity vs dogmatism

ambiguity

noun
  • words or statements that are open to more than one interpretation, explanation or meaning, especially if that meaning cannot be determined from its context. 

  • The state of being ambiguous. 

dogmatism

noun
  • The manner or character of a dogmatist; arrogance or positiveness in stating opinion. 

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