A curable cyanoacrylate composition comprising (i) at least one cyanoacrylate monomer, and (ii) at least one free radical stabilizer, wherein the free radical stabilizer comprises one or more compound(s) of formula wherein (x) denotes either a double bond and R 3 is absent, or (x) denotes a single bond and R 3 is hydrogen, linear C 1 -C 8 alkyl, branched or cyclic C 3 -C 8 alkyl, linear C 1 -C 8 alkoxy, branched or cyclic C 3 -C 8 alkoxy, linear C 2 -C 8 alkenyl, or branched or cyclic C 3 -C 8 alkenyl; R 1 is hydrogen, linear C 1 -C 8 alkyl, branched or cyclic C 3 -C 8 alkyl, linear C 1 -C 8 alkoxy, branched or cyclic C 3 -C 8 alkoxy, linear C 2 -C 8 alkenyl, branched or cyclic C 3 -C 8 alkenyl, or a group -C -O-R 2 ', wherein R 2 ' is linear C 1 -C 12 alkyl, branched or cyclic C 3 -C 12 alkyl, linear C 2 -C 12 alkenyl, or branched or cyclic C 3 -C 12 alkenyl, which linear C 1 -C 12 alkyl, branched or cyclic C 3 -C 12 alkyl, linear C 2 -C 12 alkenyl, or branched or cyclic C 3 -C 12 alkenyl optionally may be interrupted by one or more oxygen atoms; R 2 is linear C 1 -C 12 alkyl, branched or cyclic C 3 -C 12 alkyl, linear C 2 -C 12 alkenyl, or branched or cyclic C 3 -C 12 alkenyl, which linear C 1 -C 12 alkyl, branched or cyclic C 3 -C 12 alkyl, linear C 2 -C 12 alkenyl, or branched or cyclic C 3 -C 12 alkenyl optionally may be interrupted by one or more oxygen atoms; R 4 is hydrogen, linear C 1 -C 8 alkyl, branched or cyclic C 3 -C 8 alkyl, linear C 1 -C 8 alkoxy, branched or cyclic C 3 -C 8 alkoxy, linear C 2 -C 8 alkenyl, or branched or cyclic C 3 -C 8 alkenyl; and R 5 and R 5 ' independently are hydrogen or a group -O-R 6, wherein R 6 independently is hydrogen, linear C 1 -C 8 alkyl, branched or cyclic C 3 -C 8 alkyl, linear C 2 -C 8 alkenyl, or branched or cyclic C 3 -C 8 alkenyl, wherein one of R 3 or R 4 together with R 1 may form a 5- to 18-membered saturated or unsaturated ring together with the carbon atoms to which they are attached, which is optionally interrupted by one or more oxygen atoms; or R 3 and R 4 may form a 5- to 18-membered saturated or unsaturated ring together with the carbon atom to which they are attached which is optionally interrupted by one or more oxygen atoms; or R 1 with R 3 and R 4 together with the carbon atoms to which they are attached may form a 5- to 12-membered saturated or unsaturated bicyclic ring, which is optionally interrupted by one or more oxygen atoms. (i) at least one cyanoacrylate monomer, and (ii) at least one free radical stabilizer, wherein the free radical stabilizer comprises one or more compound(s) of formula wherein (x) denotes either a double bond and R 3 is absent, or (x) denotes a single bond and R 3 is hydrogen, linear C 1 -C 8 alkyl, branched or cyclic C 3 -C 8 alkyl, linear C 1 -C 8 alkoxy, branched or cyclic C 3 -C 8 alkoxy, linear C 2 -C 8 alkenyl, or branched or cyclic C 3 -C 8 alkenyl; R 1 is hydrogen, linear C 1 -C 8 alkyl, branched or cyclic C 3 -C 8 alkyl, linear C 1 -C 8 alkoxy, branched or cyclic C 3 -C 8 alkoxy, linear C 2 -C 8 alkenyl, branched or cyclic C 3 -C 8 alkenyl, or a group -C -O-R 2 ', wherein R 2 ' is linear C 1 -C 12 alkyl, branched or cyclic C 3 -C 12 alkyl, linear C 2 -C 12 alkenyl, or branched or cyclic C 3 -C 12 alkenyl, which linear C 1 -C 12 alkyl, branched or cyclic C 3 -C 12 alkyl, linear C 2 -C 12 alkenyl, or branched or cyclic C 3 -C 12 alkenyl optionally may be interrupted by one or more oxygen atoms; R 2 is linear C 1 -C 12 alkyl, branched or cyclic C 3 -C 12 alkyl, linear C 2 -C 12 alkenyl, or branched or cyclic C 3 -C 12 alkenyl, which linear C 1 -C 12 alkyl, branched or cyclic C 3 -C 12 alkyl, linear C 2 -C 12 alkenyl, or branched or cyclic C 3 -C 12 alkenyl optionally may be interrupted by one or more oxygen atoms; R 4 is hydrogen, linear C 1 -C 8 alkyl, branched or cyclic C 3 -C 8 alkyl, linear C 1 -C 8 alkoxy, branched or cyclic C 3 -C 8 alkoxy, linear C 2 -C 8 alkenyl, or branched or cyclic C 3 -C 8 alkenyl; and R 5 and R 5 ' independently are hydrogen or a group -O-R 6, wherein R 6 independently is hydrogen, linear C 1 -C 8 alkyl, branched or cyclic C 3 -C 8 alkyl, linear C 2 -C 8 alkenyl, or branched or cyclic C 3 -C 8 alkenyl, wherein one of R 3 or R 4 together with R 1 may form a 5- to 18-membered saturated or unsaturated ring together with the carbon atoms to which they are attached, which is optionally interrupted by one or more oxygen atoms; or R 3 and R 4 may form a 5- to 18-membered saturated or unsaturated ring together with the carbon atom to which they are attached which is optionally interrupted by one or more oxygen atoms; or R 1 with R 3 and R 4 together with the carbon atoms to which they are attached may form a 5- to 12-membered saturated or unsaturated bicyclic ring, which is optionally interrupted by one or more oxygen atoms.