roughshod Syllabification: (rough·shod)Pronunciation: /ˈrəfˌSHäd/Translate roughshod | into German | into Italian | into Spanish Definition of roughshod adjective archaic (of a horse) having shoes with nailheads projecting to prevent slipping. Phrases ride roughshod over see ride.roughshod in other Oxford dictionaries Definition of roughshod in the British & World English dictionary