Genderfluid is a term which refers to someone whose gender identity changes over time.

A genderfluid individual may identify as any gender identity or combination of gender identities at any given time. Their gender identity can change at random or may vary in response to different circumstances.

One's gender identity may change at different rates, possibly over the course of hours, days, weeks, months, or years. For some individuals their gender identity changes on a somewhat consistent "schedule." For others their gender identity changes inconsistently.

Some genderfluid individuals may be fluid between all gender identities, or a large number of gender identities. Others may be fluid between as few as two gender identities.

Genderfluid may be a gender identity on its own or it can be used as an umbrella term to describe anyone whose gender identity changes. For example, a bigender individual who feels more strongly agender sometimes and more strongly xenic other times may identify as genderfluid.

Genderfluid individuals may also identify with as multigender, non-binary and/or transgender.

Genderfluid individuals who feel as though only part of their gender is fluid may identify as demifluid.

Individuals who feel like the intensity of their gender changes or feel they are sometimes agender may identify as genderflux.

Some individuals under the genderfluid umbrella may identify as genderfae, a term describing individuals that are fluid in gender but never experience masculine genders. The masculine counterpart of genderfae is genderfaun and the neutral counterpart is genderflor.