This book presents and analyzes specific metaphysical tendencies that were revived within particular branches of French philosophy from the 1930s to the 1960s. Using the examples of the five philosophers active in this period (Louis Lavelle, Ferdinand Alquié, Jean Wahl, Maurice Merleau-Ponty and Emmanuel Lévinas), who did not belong to or did not form any school of thought, the author attempts to show that the specificity of this non-classical metaphysics could be located in its anti-naturalist, non-substantial, non-objectival, dialectic, critical, non-systematic and pluralist character. The analysis is preceded by a comprehensive introduction in which both theoretical and historical inspirations for the ideas presented in the book are explained. The summary provides possible influences that the described ideas could exercise over more recent currents in French philosophy.