sentient vs uncognizant

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. 

uncognizant

adj
  • Not cognizant. 

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