Agender - Agender is complete genderlessness, or the lack of gender. It is a non-binary identity in which one is not male, female, or any other gender. They may identify as most strongly as just a person, rather then as any given gender.
Erasegender - Erasgender is a gender in which the person feels like their gender has been "erased" and there is only a small trace of gender left, but the rest has been "erased" by an agender identity. Someone who is erasgender is mostly agender, but with a light trace of another gender and feels like the light gender was once their dominant gender.
Cryptogender - Cryptogender or Gendercryptic is a xenogender one cannot understand, explain or define in spoken words because the cryptogender individual is puzzled by it. It feels like it is in a superposition of being present and being away without following any visible pattern.
Postgender - Postgender is a feeling that one’s identity has been heavily influenced and shaped by a gender that one no longer experiences. For example, a postboy no longer feels that their gender identity is male but still feels a strong connection to masculinity or has been shaped by it in some way.