Anongender
Anogender is a gender identity where someone doesn't label it or would prefer to not have a label. For example, someone whose identity would be classified as a demigirl, but they'd prefer not to use a label.
History
This term was coined by FANDOM user AllenTheAsexual. The name comes from the greek word anonymos, meaning unnamed.
Flag
The black is for not having a gender identity (fully anongender) The grey is for having an identity you'd prefer not to label The white is for people who use this label as their identity but for other reasons.