Lawnmower comprising a motor, a cutting blade and a deck, said motor is suitable for putting said cutting blade in motion, said motor is integrally mounted with means for supporting the motor of the lawnmower, said means for supporting the motor are mounted on the deck by means of a multiplicity of anti-vibration fixing means of the lawnmower, said multiplicity of anti-vibration fixing means are adapted to support said means for supporting the motor, said means for supporting the motor comprise a multiplicity of upper through openings, said deck comprises a multiplicity of lower through openings arranged below and in correspondence with said multiplicity of upper through openings of said means for supporting the motor, each one anti-vibration fixing means of said multiplicity of anti-vibration fixing means is adapted to pass through one upper through opening of said multiplicity of upper through openings and through one lower through opening of said multiplicity of lower through openings, each one of anti-vibration fixing means comprises engagement means and a damping viscoelastic element, said engagement means comprise a head and a pin pointing downwards, said damping viscoelastic element comprises a through opening adapted to allow said pin of the engagement means to pass through, said pin of the engagement means is adapted to pass through said lower through opening of the deck, said upper through opening of the means for supporting the motor comprises a flange pointing downwards, said damping viscoelastic element is adapted to be engaged with said flange of the means for supporting the motor, said damping viscoelastic element comprises a base portion which contrasts with said deck so that said damping viscoelastic element is adapted to support said means for supporting the motor resting on said deck, characterized in that said damping viscoelastic element comprises an upper portion extending upward above the through opening of the means for supporting the motor, said upper portion of the damping viscoelastic element climbs over the flange of the through opening of the means for supporting the motor defining an outer diameter of the upper portion of the damping viscoelastic element larger than the diameter of the upper through opening of the means for supporting the motor, said upper portion of the damping viscoelastic element comprises an upper through opening adapted to allow the pin of the engagement means to pass through and an upper elastic membrane adapted to serve as abutment for the head of the engagement means, said damping viscoelastic element comprises at least one upper cavity arranged below the upper elastic membrane, said upper elastic membrane is adapted to be deformed vertically along a vertical axis passing from at least one first vertical position to at least one second vertical position of a multiplicity of vertical positions wherein said upper elastic membrane oscillates deforming the upper cavity dampening vertical vibrations, said upper elastic membrane is adapted to be deformed transversely with respect to the vertical axis passing from at least one first transversal position to at least one second transversal position of a multiplicity of transversal positions wherein said upper elastic membrane oscillates deforming the upper cavity about the vertical axis dampening transversal vibrations.