Achiralgender

Achiralgender is an [./https://lgbta.wikia.org/wiki/Eugender eugender] without an [./https://lgbta.wikia.org/wiki/Antigender antigender] or an [./https://lgbta.wikia.org/wiki/Ungender ungender], or vice-versa due to an impossibility of the reverse form. It's a gender that cannot possess a polar opposite.

History
The term achiralgender was first coined by Tumblr user mogai-ringo on September 5th, 2018 in order to describe their experience.

Flag
The achiralgender flag was coined by a user going by Amnisty on November 17th, 2020. The gold represent the lone genders that achiralgender encompasses, the black represents the lack of an antigender, and the white represents [./https://lgbta.wikia.org/wiki/Multigender multigenders] that inherently have no opposite, such as [./https://lgbta.wikia.org/wiki/Pangender pangender], since pangender encompasses [./https://lgbta.wikia.org/wiki/Agender agender] as well, making no opposite for it.

Etymology
The term achiralgender was taken from achiral, a molecule that cannot be superposed on its mirror image by any combination of rotations and translations.