The title compound, C(18)H(20)N(2)O, crystallizes with two mol-ecules in the asymmetric unit. The seven-membered ring in both mol-ecules adopts a distorted chair conformation. The dihedral angles between the phenyl rings are 43.2 (1) and 54.7 (1)° in the two mol-ecules. The crystal packing features N-H⋯O and weak N-H⋯π and C-H⋯π inter-actions.