An antinovel is any experimental work of fiction

Fiction

Fiction is the form of any narrative or informative work that deals, in part or in whole, with information or events that are not factual, but rather, imaginary—that is, invented by the author. Although fiction describes a major branch of literary work, it may also refer to theatrical,...

 that avoids the familiar conventions of the novel

Novel

A novel is a book of long narrative in literary prose. The genre has historical roots both in the fields of the medieval and early modern romance and in the tradition of the novella. The latter supplied the present generic term in the late 18th century....

. The term was coined by the French philosopher and critic Jean-Paul Sartre

Jean-Paul Sartre

Jean-Paul Charles Aymard Sartre was a French existentialist philosopher, playwright, novelist, screenwriter, political activist, biographer, and literary critic. He was one of the leading figures in 20th century French philosophy, particularly Marxism, and was one of the key figures in literary...

.

The antinovel usually fragments and distorts the experience of its characters, forcing the reader to construct the reality of the story from a disordered narrative.

A notable example of an antinovel is Julio Cortázar

Julio Cortázar

Julio Cortázar, born Jules Florencio Cortázar, was an Argentine writer. Cortázar, known as one of the founders of the Latin American Boom, influenced an entire generation of Spanish speaking readers and writers in the Americas and Europe.-Early life:Cortázar's parents, Julio José Cortázar and...

's Hopscotch.