non-binary

Short definition from Wiktionary

Adjective

1. 1
   Not binary.
2. 2
   Having or pertaining to a gender identity not represented by the gender binary; not exclusively male or female; genderqueer.

Noun

1. 1
   Something which is not a binary; a computer file that is not readable text.
2. 2
   A non-binary (genderqueer) person.