Agender

Definitions and Usage
Agender describes a lack of gender, being genderless, having a gender one cannot describe, or having a void in place of gender. It is more of a label or descriptor, versus a gender in itself. Agender people may use terms like transgender or nonbinary to describe themselves, but may shy away from those terms because it implies they have a gender.

Subgenders
Agender is a static gender, but can be paired with suffixes to create other terms. Genderflux is a gender is sometimes agender; gxrl, bxy, and nxnbinary describe simultaneously being agender and gendered. There are also xenogenders that relate agender to cosmic phenomena.

Flags
The blacks and greys represent the void of being agender, while the green represents nonbinary genders.