Spacialian is a xenogender alignment from the galactian system describing someone who is xenine/xeno-aligned. The main idea is that spacialians identify as a gender that is unrelated to masculinity, femininity and/or manhood and womanhood; however, they are not neutrally gendered either. They still feel gendered, but their gender is unrelated to typical human gender alignments.
It is another word for xenic.
The spacialian flag was posted in subreddit r/QueerVexillology on November 15, 2020.