#centralgender

Describing pengenders/penugenders/penegender/paenegenders/paenugenders/paengenders, paragenders, quasi-genders, -jux-/-prox(imal)- genders, perigenders and almogenders. Who are proximal to certain gender in the spectrum.

Based on penultrois/penultimatrois, pen- meaning "almost, nearly", just as in penumbra and peninsula. Alternative words: penutrois, paentrois, paenutrois, paenetrois, penetrois, peritrois, paratrois, pertrois, partrois, proxitrois, pæntrois, pænutrois.

Ultimatrois

Or ultrois. Conoting ultimate genders or gender ultimacy, your final/last gender (previous/prior/recent/subsequent) or its extremity/maximum. Your foremost, furthest gender (innermost/utmost/midmost/topmost), but it's ultimary not citimary/citrois, ulterior(ity) not citerior(ity) [citi-/citer-/citra- is the opposite of ultra-/ulti-/ulter-].

Ultimarity could be an (ant)arity that goes beyond limits or is subsequent/ends somewhere. Uls denotes beyond, just as extr(a)-/exter-.

You mean like mesotrois/centrois or centrigender? It's like being the zero in the Cartesian system, centered in the middle of the spectrum.

Some people interpret their gender as in-between two genders in a linear spectrum. Specially when it's interchangeable with neutral gender/neutrois.