Wifsynian is a synian orientation that refers to people under the multigender umbrella who are exclusively attracted to binary women. They are not attracted to woman-aligned or feminine-aligned people, only binary women.
Achillesynian can be used to describe any form of attraction.
History
Wifsynian was officially coined by FANDOM user Reign of the breadsticcs on April 23, 2021, though she designed the flag for the concept some time in later March of 2021.