Definition of "extradiegetic"

This voice-over functions very differently from the extradiegetic narrator of the radio soap opera however, who tended to impose ideological coherence on the text, as well as serve as spokesman for the products being sold.

2011, Harry M. Benshoff, Dark Shadows, Wayne State University Press, published 2011, page 38

However, in this sequence Colleen's actions alone do not make her horrific. Rather, the extradiegetic music condemns her.

2011, Alison Peirse, “Horrible Women: Abjection, Gender and Ageing in Nip/Tuck”, in Roz Kaveney, Jennifer Stoy, editors, Nip/Tuck: Television That Gets Under Your Skin, I. B. Tauris & Co. Ltd, page 76

Instead, an extradiegetic narrator renders detached testimony of the hero's traumatic story in the Thatcher era.

2011, José M. Yebra, “A Terrible Beauty: Ethics, Aesthetics, and the Trauma of Gayness in Alan Hollinghurst's The Line of Beauty”, in Susana Onega, Jean-Michel Ganteau, editors, Ethics and Trauma in Contemporary British Fiction, Rodopi, page 183