Omnisexual (often shortened to omni) is an orientation defined as the sexual attraction to all genders, though gender often still plays a role in one's attraction. Some people who identify as omnisexual may have a preference to which gender they feel most attracted to. For others they may be equally attracted to all genders, but they may feel the act of being attracted to one gender feels different than the act of being attracted to another gender. They might also find certain traits only attractive in certain genders.
The romantic equivalent is omniromantic.
Omnisexuality vs. Pansexuality
Pansexuality and omnisexuality are very similar as they both involve the attraction to all genders, however one can make a distinction between them if they wish. For pansexual people, they do not feel any internal difference between genders.
Omnisexual people are also attracted to all genders, much like pansexuals, but omnisexuals tend to feel a difference between genders. This can manifest itself as a preference for certain gender(s) (though omnisexuals do not have to have a preference). Omnisexual people may also feel as those the act of being attracted to certain gender(s) feels different from being attracted to other gender(s). They might also find certain traits only attractive in certain genders.
The word omnisexuality appears as early at the 1959 beat poet Lawrence Lipton's The Holy Barbarians, but the first time it was described in the context of the current definition was in a 1984 text titled simply Sexual Choices: An Introduction to Human Sexuality. This text described omnisexuality as "a state of attraction to all sexes", stating that some researchers believe that every individual is born omnisexual before developing their sexual attraction into the labels of homosexual, heterosexual, or other orientations.
The term spread even further in the early 1990s as M. Jimmie Killingsworth undertook an analysis of the poet Walt Whitman. In Killingsworth's study, he found that Whitman had a general omnisexual character throughout his work The Leaves of Grass. In the 2010s, The Atlantic noted that his poetry expresses sexuality towards all genders, sometimes even the sea or the Earth.
Omnisexual was a common message board term in the 2000s. The knowledge of this term was boosted even further when several celebrities, such as Janelle Monáe and Brendon Urie, came out as pansexual. The media made several non-monosexual terms known in the mainstream as that took place. Many popular articles discussed omnisexuality alongside these celebrities' pansexuality.
Some fictional characters, such as Jack Harkness from Doctor Who, and Kevin Crawford from Paradise P.D. have been canonically confirmed as omnisexual.
The omnisexual flag was designed by Pastelmemer on or before July 4, 2015. It is unknow if the colors have any meaning, but a purposed meaning is as follows: The light pink and light blue represents the gender spectrum. Pink represents attraction to femininity and women. Blue color represents attraction to masculinity and men. The deep purple represents attraction to people whose gender identity falls outside of the named categories.
The fifth alternate flag was coined by Cryptocrew at Hayden000s request on January 16th of 2021 and was first published on a post one day later. Dark blue represents men, mid-blue represents masculine genders, light blue represents non-masculine genders that have masculine presentation (such as azurgirls); dark green represents the agender/genderless spectrum, yellowish green represents demigenders, and yellow represents non-demigenders and non-genderless people with neutral presentation (such as a pewt man); red represents women, pale red represents feminine genders, reddish-pink represents non-feminine genders that have feminine presentation (such as rosboys); black represents anonbinary genders, purple represents androgynous genders, grey represents non-outherine and non-androgynous genders that present androgynously or in an amaranthian manner (such as a linproche agender person); white represents fluid genders/multigenders and people with fluid or multiple presentations; while the yellow design represents attraction and community, and a burst of love/attraction.
The prefix omni- comes from the Latin word omnis, meaning "all". Pan-, which the term pansexual comes from, also means "all" but is of ancient Greek origin.