A process for the stabilization of olefinically unsaturated monomers

The invention relates to a method for the stabilization of olefinically unsaturated monomers, which is characterized in that a retarder composition comprising a solvent and a Quinonmethid as a retarder, is added to an olefinically unsaturated monomer or monomer mixture containing at least one olefinically unsaturated monomer , and the resulting monomer composition.