questioning vs quizzical

questioning

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

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

noun
  • Interrogation. 

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

  • The act of challenging, wondering, and doubting. 

quizzical

adj
  • Questioning or suggesting puzzlement. 

  • Strange or eccentric. 

  • Jocose; humorous. 

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