Wiktionary
a. of, or relating to a megalopolis n. An inhabitant or a resident of a megalopolis.
Usage examples of "megalopolitan".
The Megalopolitans after being expelled by the Lacedaemonians in the days of their grandfathers had been reinstated by Antigonus.
To make sure of the Achaeans he sent envoys to require them to renew the oath of fidelity which they had undertaken to renew annually, and also to announce his intention of restoring to the Achaeans the cities of Orchomenos and Heraea and the district of Triphylia and to the Megalopolitans the city of Aliphera, as they maintained that it had never belonged to Triphylia, but was one of the places from which by direction of the council of the Arcadians the population had been drawn to found Megalopolis, and therefore it ought to be restored to them.