roadster UK /ˈɹəʊdstə/US /ˈɹoʊdstəɹ/ noun8 •An open automobile having a front seat and a rumble seat. •A bicycle, or tricycle, adapted for common roads, rather than for the racing track, usually of classic style and steel-framed construction. •(UK, old-fashioned) One who drives much; a coach driver. •A person who lives along the road. •a sea-going vessel riding at anchor in a road or bay. •(slang, old-fashioned) A hunter who keeps to the roads instead of following the hounds across country. •A clumsy vessel that works its way from one anchorage to another by means of the tides. •(no longer used) A horse for riding or driving on the road.a sound, swift, well-bred hunter and roadster — 1857 formsroadsters