#isosex

Isossex/isogenital, abssex/absex/absgenital or metagenital/metasex: not being cissex/cisgenital nor transsex/transgenital; conceptualizing your sex as neither trans or cis. 

Also named isosexed, isossexed, isosexual(ity) [specious], isosexus, isosexuous/isosexous, isossexo, isosexe, isogonadal, metagonadal, absgonadal, isogenic, isogenetic [hyponyms].

Iso- comes from isomers, suggested/coined/signified/created by anon via @bigendering​ describing those who are uncomfortable with calling themselves trans but aren’t cis either.