cisgender vs gender-free

cisgender

adj
  • Having a gender identity which matches the sex one was assigned at birth; or, pertaining to such people. 

noun
  • A cisgender person. 

gender-free

adj
  • Which does not define people in the basis of gender; in which gender is irrelevant to people's lives and choices. 

  • Agender, being neither male nor female nor any third gender; free of gender. 

  • Acceptable for or available to any gender. 

How often have the words cisgender and gender-free occurred in a corpus of books? (source: Google Ngram Viewer )