Atmosvillainic

 is a gender associated with the atmosphere or "vibe" of comic book supervillains.

Etymology

 * Prefix "atmos" from "atmosphere."
 * Root word "villain" with common gender suffix "-ic"

Definition

 * A gender associated with the atmosphere or “vibe” of comic book supervillains. This could include things like camp/campiness, puns, banter, scheming, henchmen, “evil plans” and similar ideas! - tumblr user neogenders, 2020

History
On June 10, 2020, Tumblr user neogenders coined the term Villainic and its subsets, including Atmosvillainic. A few days later, on June 16, 2020, neogenders posted his Villainic flag, along with a flag for its sibling term, Heroian.

Gallery
Tumblr user neogenders has stated that his Villainic flag, pictured above, can be used for the three subsets of Villainic mentioned in his coining post - Aesvillainic, Atmosvillainic, and Morvillainic.