An adaptive fifth-wheel hitch system operable with a vehicle hitch coupling system, the fifth-wheel hitch assembly comprising a fifth-wheel hitch assembly configured to removably couple a fifth-wheel trailer to a vehicle; an adapter configured to operably relate and to removably couple the fifth-wheel hitch assembly to the vehicle hitch coupling system, the fifth-wheel hitch assembly and the vehicle hitch coupling system otherwise being inoperable with one another, the adapter comprising a mounting component having a first interface operable to relate and secure the adapter to the fifth-wheel hitch assembly, and a coupling component having a second interface operable to relate and secure the adapter to the vehicle hitch coupling system, the coupling component corresponding to a receiving component of the vehicle hitch coupling system.