Expeditionist is a term used for a person who loves travelling and exploring the unknown. There are many synonyms for expeditionist, including adventurer, explorer, globetrotter, wanderer, and voyager. Each of these words conveys the same sense of wanderlust and a spirit of adventure, but may have slightly different nuances in terms of the type of travelling one does. For instance, adventurer may suggest a more risky and exciting type of exploration, while explorer may connote a more scientific or historical pursuit. In any case, all of these synonyms describe a person who has a thirst for discovering new places, cultures, and experiences.