In Being and Time, Heidegger presented the finitude of human existence from the concepts of being towards death and anticipatory resoluteness. By interpreting human existence as existential possibility, it becomes possible to properly understand existential death as distinct from death in the vital sense. In view of the projective characteristic of understanding, Heidegger shows that projection into possibilities is always subject to risk and failure, since what sustains the “existential” aspect of existential possibility is projection in it. In this sense, (...) the objective of this article is to present and discuss the concepts of death, existential possibility and finitude existence based on the interpretative thesis that Heidegger’s elaboration of the existential concept of death is independent of the common and mundane sense of death, presented through the concept of demise, based on the thesis proposed by Heidegger that death is the possibility of the impossibility of existence in general. (shrink)