Ungender

Ungender is a gender in which one feels not only genderless, but also feels as though their gender is the polar opposite to the concept of gender in general.

History
Ungender was coined on June 24, 2014 by tumblr user baaphomett.

Flag
The flag was created on September 23, 2018 by tumblr user leptrois.

Resources
http://archive.is/d8bve