PROBLEM TO BE SOLVED: To provide a curable composition capable of giving a cured product excellent in mechanical strength such as bending strength, and a compound suitable as a component constituting the curable composition. A curable composition comprising a compound (A) represented by the general formula (A) and a similar polyfunctional (meth)acrylamide compound. [In the general formula (A), R1 represents a hydrogen atom or a methyl group, R2 represents an alkylene group having 2 to 8 carbon atoms which may have a substituent, and m represents an integer of 1 to 6. However, a plurality of R1, R2 and m may be the same or different from each other. ] [Selection diagram] None【課題】曲げ強さ等の機械的強度に優れる硬化物を与えることのできる硬化性組成物および当該硬化性組成物を構成する成分として好適な化合物を提供すること。【解決手段】一般式(A)で表される化合物(A)と、類似多官能(メタ)アクリルアミド化合物とを含む、硬化性組成物。[一般式(A)中、R1は水素原子またはメチル基を表し、R2は置換基を有していてもよい炭素数2~8のアルキレン基を表し、mは1~6の整数を表す。ただし、複数存在するR1、R2およびmは、それぞれ、互いに同一であってもよいし異なっていてもよい。]【選択図】なし