Voidian or voidic is a sexuality characterized by being comfortable with it being unknown or undefined. Not to be confused with questioning, as that implies that one is searching for a label and/or is uncomfortable with their sexuality being unknown.
History
The term was coined by Stamp-ede31 on DeviantArt (CapybaraKing47) to describe his sexuality. The flag was created at the same time.
Flag
The voidian flag has five horizontal stripes, the red and orange representing sexuality, the purple stripes representing mystery and the yellow connecting the two.