nocturnalgender. Coined by passengender in 2014. Any gender that feels more intense during the night, "but weak/nonexistent when it is light out." Syn. batgender, owlgender, moongender. Counterpart: flowergender.
owlgender. See nocturnalgender.
pangender. Having potentially any gender identity, either at the same time, or changing between them.
pre- and postgender. "Before and after a gender; preboy would be moving to identify as a boy but has yet to fully embrace the term and pregirl would be moving to identify as a girl but has yet to fully embrace the term; postboy would have moved on from identifying as a boy but still has gendered ties to identifying as a boy and postgirl would have moved on from identifying as a girl but still has gendered ties to identifying as a girl." Coined by Baaphomett .
pivotgender. coined by: damloz. "someone whose gender changes depending on who they are around note: not to be confused with mutogender, which goes for people and situations"
selenogender. See monagender.
sychnogender, sychnogenderfluid. Gk. συχνός "frequent." Coined by gyey. "Like [argrogender] but regarding frequency. The gender of someone who is sychnogender might change many times throughout the course of a day." 
tachigender, tachigenderfluid. Gk. ταχύτητα "speed." Coined by gyey. "Like [argrogender] but regarding rapidity, a gender that changes quickly or that otherwise has to do with high speed." 
trigender. Having three gender identities, either at the same time, or changing between them. These three genders might be female, male, and a nonbinary gender, or they might be a different pair of genders.
venufluid. Coined by a-tiny-peach. "Genderfluid but mostly/only fluid with feminine genders (based on venus symbol)."  Syn. femmefluid.