Robespierre ro·bes·pierre uncommon noun 1. French revolutionary; leader of the Jacobins and architect of the Reign of Terror; was himself executed in a coup d''etat (1758-1794) SynonymsMaxmillien Marie Isidore de Robespierre Related words Broader terms revolutionist WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.