-adic vs -sex
Some people are uncomfortable with the word s3x (seks), others just want a monolexic label. Here are some alternatives, based on dyadic given that the problem was with its prefix, not the suffix:
Prot(o)sex – protadic
Var(i)sex – variadic/varadic
Par(a)sex – paradic
Endosex – endadic
Perisex – periadic
Juxtasex – juxtadic
Intersex – interadic
Altersex – alteradic
Cissex – cisadic
Ultersex – ulteradic/ultradic
Citersex – citradic/citeradic
Ipsosex – ipsadic/ipsoadic
Transsex – transadic/tranadic/trannadic
Intrasex – intradic
(Am)bissex – (am)biadic
Polyssex – polyadic/poliadic
Multissex – multiadic
Plur(i)sex – pluradic/pluriadic
Extersex – exteradic/extradic
Infrasex/infersex – infradic/inferadic
Altsex – altadic
Teresex – teradic/nulladic/nuladic
Duosex/duasex – duadic/duoadic
Diversex – diveradic/divradic
Phantasex – phantadic/fantadic
Binisex – binadic/biniadic
Peransex – peradic/peranadic/perandic
Trissex/trisex – triadic/teradic
Liberasex – liberadic/libradic
Sexflux – fluxadic/flexadic
Sexfluix – fluixadic/fliuxadic/flinadic
Metasex – metadic
Isosex – isadic/isoadic
Vaguesex – vaguadic
Apasex – apadic/cassadic
Faunasex – faunadic
Florasex/florsex – floradic
Xenosex/xensex – xenadic
Sexpunk – punkadic/punxadic
Neutersex – neutradic/neuteradic
Antersex/iltersex – iltradic/antradic/anteradic/ilteradic
Mythosex – mythadic/mitadic/mytadic/mytholadic/mitoladic
Monstersex/teratosex – monstradic/monsteradic/teratadic
Apothisex – apotiadic/apotadic/apothadic/apothiadic
Assex/ansex/asex – anadic/unadic/aydic/ayadic/aiadic
Nbysex – enbadic/enbyadic/enbiadic/nbadic/nbyadic/nbadic/nonbadic/nbiadic
Pansex – omnadic/onadic/omniadic/oniadic/panadic/pandic
Sexqueer/queersex/cuirsex/kuirsex/kweersex – queeradic/cuiradic/kuiradic/kweeradic
Astersex/astrosex/astrasex – astradic/asteradic
Amplussex/amplisex – ampladic/amplusadic/ampliadic
Grayasex/greyasex – greyadic/grayadic/gradic/graydic/greydic/grisadic
Othersex – oteradic/oradic/outradic/outeradic/outheradic/otheradic/eladic/eliadic/outhradic/othradic
Demissex/hemisex/semisex – semiadic/semadic/demiadic/demadic/hemadic/hemiadic
Obviously a lot of these were unreleased/not fully coined yet.