An active energy ray-curable composition is disclosed including: an anionically polymerizable compound represented by (1): wherein EWG represents an electron-withdrawing group, X represents a single bond or an oxygen atom (—O—), R represents an n-valent organic group, and n represents an integer of 1 to 6; when n is an integer of 2 to 6, the respective EWG and the respective X may be the same or different; and when n is 1, EWG and R may be bonded; and a compound (photobase generator) represented by (2): wherein ring A represents an aromatic ring that may be substituted or a heteroaromatic ring that may be substituted; R1 and R2 are the same or different and each represents a hydrogen atom or an alkyl group; R1 and R2 may be bonded to each other to form a ring together with an adjacent nitrogen atom; and the ring may be substituted.