doctrinaire vs questioning

doctrinaire

noun
  • In France, in 1815-30, one of a school who desired a constitution like that of Britain. 

  • A person who stubbornly holds to a philosophy or opinion regardless of its feasibility. 

adj
  • Stubbornly holding on to an idea without concern for practicalities or reality. 

questioning

noun
  • Interrogation. 

  • The action of asking questions; a survey; an inquiry. 

  • The act of challenging, wondering, and doubting. 

adj
  • Unsure of one's sexual orientation and/or gender identity. 

  • Characterized by questions, inquisitiveness, doubt, or wonder. 

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