questioning vs undoubting

questioning

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

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

noun
  • Interrogation. 

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

  • The act of challenging, wondering, and doubting. 

undoubting

adj
  • Experiencing or harboring no doubts; entirely confident. 

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