In the title hydrated 1:1 adduct, C(8)H(8)O(2)·C(14)H(13)N(3)O·H(2)O, the Schiff base mol-ecule exists in an E conformation with respect to the N=C bond [1.2843 (13) Å] and the dihedral angle between the pyridine ring and the benzene ring is 1.04 (5)°. In the crystal, mol-ecules are linked by N-H⋯O, C-H⋯O, O-H⋯O and O-H⋯N hydrogen bonds into sheets lying parallel to the ab plane. The crystal structure also features π-π inter-actions with centroid-centroid distances of 3.6224 (6) and 3.7121 (6) Å.