Esperantist adjective 1noun 1forms 1 adjective1 •Of, relating to, or characteristic of Esperanto.Underlying every Esperanto enthusiast is the Esperantist ideal that the world would be a better place if everyone could understand each other better. noun1 •A specialist or speaker of Esperanto, the international auxiliary language designed by L. L. Zamenhof.A growing number of Esperantists all over the world are using the services of the U. E. A. — 1914 formsEsperantists