Gendervoid

Gendervoid or Voidgender refers to a gender which is an absence, a blank space or void where a gender might otherwise be.

Gendervoid vs. Agender
Gendervoid is similar to agender, and the two terms are sometimes used interchangeably. However, while they do overlap, they are not always the same. Agender is a more broad term that sometimes encompasses neutral genders. While an agender person may also feel as though they never had a gender in the first place, a gendervoid person may feel like there is an empty place where a gender would/should be but simply isn't.