roadside UK /ˈɹəʊdsaɪd/US /ˈɹoʊdsaɪd/adjective 1noun 1forms 1 adjective[before a noun]1 •Located beside a road (or railway).The roadside stand did a good business just selling products to people who merely wanted directions. noun1 •The area on either side of a road.I pulled over to the roadside to check the map. formsroadsides