Mesopelic: A gender identity that's connected to the mesopelagic zone of the ocean in some way. It can be a literal connection, but it might also be more symbolic, such as being partly obscured or hidden away.

The mesopelagic zone is also called the "twilight zone" in more casual contexts, and makes up around 60% of the ocean. Only a tiny bit of light from the surface reaches it, hence the relation to twilight.

Hadalic moodboard with a  glowy sea dragon/cryptid theme for @a-matter-of-yeet

🌊 🌊 🌊 / 🌊 🌊 / 🌊 🌊 🌊

Hadalic (adj.) - A gender that is related to the hadal zone of the ocean.