The philosophical manifestos of the past few decades involving attempts to go beyond constructs, discourses, and structures to the things themselves and a return to ontology and materialism often address the problems of the Anthropocene. Criticism of anthropocentrism and the introduction of the nonhuman into the focus of philosophy opened up new perspectives in solving the problems of idealism. This escape from the discursive aspect and the human factor, which is intended to break out philosophical projects to the outside, to (...) what is on the other side of culture and language, to the planet, to matter, is accompanied by sequences of negations. Exploring the outer edge of philosophy, the periphery of culture, dark and marginal subjects, these authors try to construct a kind of anti-discourse, a nonphilosophy. In order to unlock the nonthinkable, what is being proposed to us is an exploration of objects that philosophical thought has heretofore ignored. The path to the nonhuman and nonthinkable lies through nonphilosophy. This article attempts to analyze such negations. It analyzes the function of negation by turning to psychoanalytic theory, in which the examination and modification of negation is one of the key themes. The principal mechanism of analysis is the modified logic of the psychoanalyst Jean Michel Vappereau. But the classical modifications of negation of Sigmund Freud and Jacques Lacan are also considered. The article’s central question—how does one interpret the negation in a human’s turning to the nonhuman, of philosophy to nonphilosophy, of an act of thought to the nonthinkable—is resolved in two ways, which constitute the two sections of the article. The results of the analysis open up obscure ways of interpreting such philosophical manifestos. (shrink)