Negatrois
Negatrois (NGT), also known as negatois or negative-gender, is a leptrois identity in which one is negatively gendered. This can include antigenders, negative gender, and gender negativity. It is not the same thing as genderlessness because one has gender; it's just negative gender. It is also not related with negative emotions.
Negatrois can be a feeling of shortage/decrease of elements, or a minimal/diminutive gender. It can also be described as a "heavy" gender.
It is not necessarily a neurogender or xenogender, but one may associate or compare their gender negativity with other things such as their neurotype, life experience, lethargy, magnetism, numbers (as in arithmogender), temperature/weather, or other things involving sciences such as physics and chemistry.
Negatrois is the opposite of positrois. When positrois and negatrois are combined they will nullify to create a neutral or null gender, such as nulltrois.