Comgender

Comgender refers to someone who has or experiences a gender or genders, but does not want to specify which gender(s) they are. It is the opposite of agender in that a comgender person has a gender or fully possesses a gender. Comgender is used as a specific identity for people who are unable or unwilling to specify their identity any further than the fact that they have a gender.

Another similar term is allogender.

History
This term was coined by an anonymous user in 2016. It was featured on the Mogai Flags Tumblr account.