In the title compound, C(22)H(21)NO, the dihedral angle between the phenyl rings is 82.59 (7)°. The dimethyl-benzene ring forms dihedral angles of 52.86 (4) and 49.65 (5)° with the two phenyl rings. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds, forming a C(4) chain along the c axis. The crystal also features C-H⋯π inter-actions.