transpontine adjective3 •Of, relating to, or situated on the far side of a bridge. •Of, relating to, or situated on the far side of a sea.he may beget upon her Children worthy of some Transpontine Monarchy — 1748 •(historical) Relating to the sensational melodramas presented on the south side of the Thames in the 19th century or earlier.Blood and thunder melodrama was once transpontine: it is now cispontine. It has crossed the Thames, and come over the bridges. — 1882