reactive vs sentient

reactive

adj
  • that reacts or responds to a stimulus 

  • Characterized by induction or capacitance rather than resistance. 

  • that readily takes part in reactions 

  • Reacting to the past rather than anticipating the future, not predictive. 

sentient

adj
  • Experiencing sensation, thought, or feeling. 

  • Possessing human-like awareness and intelligence. 

  • Able to consciously perceive through the use of sense faculties. 

noun
  • An intelligent, self-aware being. 

  • Lifeform with the capability to feel sensation, such as pain. 

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