Rainbowaesic

 is an aesthetigender related to rainbow aesthetics.

Pronunciation
/rayn-boh-AYS-ick/

Etymology
Rainbow with suffix -aesic, usually used to denote genders relating to specific aesthetics.

Definitions

 * rainbowaesic: a (xeno)gender related to rainbow aesthetics; a rainbow aesthetigender - neopronouns, 2021

History
Rainbowaesic was coined on July 20, 2021 by Tumblr user neopronouns. The flag was made on the same day by the same person.