cishet /ˈsɪs.hɛt/adjective 1noun 1forms 1 adjective1 •(informal) Cisgender and heterosexual.Even in death, the way we are spoken about by the mainstream cishet world is traumatizing and violent. Even in death, trans women of color cannot escape the trauma of colonialism and genocide. — 2013 noun1 •(informal) A cisgender and heterosexual person.Last weekend I was on Facebook taking part in a conversation about dating sites when someone called me a cishet, in a sneering tone. — 2013 formscishets