Negatrois (now called nectrois) arity, encompassing negative leptarities such as unbinary, antibinary and negabinary. It describes antigender arities.

Other words: negarity, antary/antarity, antiarity/antiary, nectary/nectarity, antinary/antinarity, nectrary/nectrarity, neganary/neganarity, necnary/necnarity.

Some possible negarities/antarities: antitrinary/triantary/triantinary/antrinary, antiunary, negunary/necunary/nectunary, necternary/negatrinary/negaternary/nectrinary.

It should be said that if a leptarity embeds antigender(s) or gender negativities/nectralities, it's still a positive gender arity. Nectral arities are about how many entries are your opposite genders or that you experience them negatively/necterly/nectrally.