A polymerizable composition comprising: an alicyclic isocyanate compound having two or more functional groups and/or an aliphatic isocyanate compound having two or more functional groups; a thiol compound having one or more sulfide bonds and two or more functional groups or a thiol compound having one or more ester bonds and two or more functional groups; and an imidazole-based curing catalyst, wherein the amount of the imidazole-based curing catalyst is 5 ppm to 3,000 ppm with respect to the total amount of an isocyanate compound and a thiol compound, wherein the thiol compound is at least one selected from group consisting of 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, 4,8-, 4,7- or 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, tetrakis(mercaptomethyl)methane, bis(mercaptomethyl)sulfide, 2,5-bis(mercaptomethyl)-1,4-dithiane, bis(mercaptomethyl)disulfide, bis(mercaptoethyl)sulfide, bis(mercaptoethyl)disulfide, bis(mercaptomethylthio)methane, bis(2-mercaptoethylthio)methane, 1,2-bis(mercaptomethylthio)ethane, 1,2-bis(2-mercaptoethylthio)ethane, 1,3-bis(mercaptomethylthio)propane, 1,3-bis(2-mercaptoethylthio)propane, 1,2,3-tris(mercaptomethylthio)propane, 1,2,3-tris(2-mercaptoethylthio)propane, 1,2,3-tris(3-mercaptopropylthio)propane, 1,1,3,3-tetrakis(mercaptomethylthio)propane, 4,6-bis(mercaptomethylthio)-1,3-dithiane, 2-(2,2-bis(mercaptomethylthio)ethyl)-1,3-dithietane, tetrakis(mercaptomethylthiomethyl)methane, tetrakis(2-mercaptoethylthiomethyl)methane, bis(2,3-dimercaptopropyl)sulfide, the thiol compound is at least one selected from group consisting of 2,3-dimercapto-1-propanol(3-mercaptopropionate), 3-mercapto-1,2-propanediol bis(2-mercaptoacetate), 3-mercapto-1,2-propanediol di(3-mercaptopropionate), trimethylolpropane tris(2-mercaptoacetate), trimethylolpropane tris(3-mercaptopropionate), trimethylolethane tris(2-mercaptoacetate), trimethylolethane tris(3-mercaptopropionate), pentaerythritol tetrakis(2-mercaptoacetate), pentaerythritol tetrakis(3-mercaptopropionate), pentaerythritol bis(3-mercaptopropionate), pentaerythritol tris(3-mercaptopropionate), glycerin tris(2-mercaptoacetate), glycerin tris(3-mercaptopropionate), 1,4-cyclohexanediol bis(2-mercaptoacetate), 1,4-cyclohexanediol bis(3-mercaptopropionate), hydroxymethylsulfide bis(2-mercaptoacetate), hydroxymethylsulfide bis(3-mercaptopropionate), thioglycolic acid bis(2-mercaptoethylester), thiodipropionic acid bis(2-mercaptoethylester), hydroxyethylsulfide (2-mercaptoacetate), hydroxyethylsulfide (3-mercaptopropionate), a thiol compound represented by the following Formula; wherein each of 1, m, and r independently represents an integer of 1 to 4, and n represents an integer of 1 to 3, R represents hydrogen or a methyl group, and when there is a plurality of Rs, Rs may be the same as or different from each other, and excluding the case using a metal-containing compound as a catalyst. an alicyclic isocyanate compound having two or more functional groups and/or an aliphatic isocyanate compound having two or more functional groups; a thiol compound having one or more sulfide bonds and two or more functional groups or a thiol compound having one or more ester bonds and two or more functional groups; and an imidazole-based curing catalyst,