The title mol-ecule, C(18)H(18)N(2)O(2), is V-shaped with the pyrazoline moiety being inclined to the adjacent phenyl ring by an angle of 6.49 (9)°, while the 4-meth-oxy-substituted ring is inclined to the pyrazoline ring by 82.99 (9)°. In the crystal, adjacent mol-ecules are linked by C-H⋯O inter-actions, forming chains propagating in [100]. There are also C-H⋯π inter-actions involving adjacent mol-ecules and those related by an inversion center.