Gender fluidity (commonly referred to as genderfluid) is a non-fixed gender identity that shifts over time or depending on the situation. These fluctuations can occur at the level of gender identity or gender expression. A genderfluid person may fluctuate among different gender expressions over their lifetime, or express multiple aspects of various gender markers simultaneously.[1][2] Genderfluid individuals may identify as non-binary or transgender, or cisgender (meaning they identify with the gender associated with their sex assigned at birth).[3][4]
Gender fluidity is different from gender-questioning, a process in which people explore their gender in order to find their true gender identity and adjust their gender expression accordingly.[5] Gender fluidity continues throughout lives of genderfluid people.[6]