gender-free vs masculine

gender-free

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

  • Acceptable for or available to any gender. 

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

masculine

adj
  • Of or pertaining to the male sex; biologically male, not female. 

  • Being of the masculine class or grammatical gender, and inflected in that manner. 

  • Being inflected in agreement with a masculine noun. 

  • Of or pertaining to the male gender; manly. 

  • Having the qualities stereotypically associated with men: virile, aggressive, not effeminate. 

  • Having the vowel harmony of a back vowel. 

  • Belonging to males; typically used by males. 

noun
  • The masculine gender. 

  • That which is masculine. 

  • A word of the masculine gender. 

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