Unreality
While the word unreality has been in recorded use since the 1750sHarper, Douglas. “Unreality (Adj.).” Online Etymology Dictionary, accessed 4 Nov. 2024. https://www.etymonline.com/word/unreality#etymonline_v_49840, it is at the time of this writing (2025) used to warn for content that triggers pre-existing psychological conditions to become: intrusive thoughts and feelings of dissociation from reality. In terms of literary devices, author and critic Anaïs Nin described "the web of unreality" Nin, Anaïs. The Novel of the Future. MacMillan, New York: 1968. or a description of fiction that develops a presentation and belonging to one reality—before subverting itself, such as names or places or events bearing more than a coincidental resemblance that would categorize the text as fiction, instead implying an accurate report of a real-life story. The other way also applies, such as an immersion into a fictional story with as much suspension of disbelief as fiction readers can provide, before the text makes the reader aware that everything preceding this revealing twist has been fiction. That circumstance creates a condition of metafiction, or recognizing a story within a story, as well as blurring the lines between fiction and reality.
This literary device appears in the following works: