plenipotential /ˌplɛnɪpəˈtɛnʃəl/ adjective1 •Pertaining to a plenipotentiary; having full authority.In fact, there were few fronts on which de Gaulle was not attacking with vigour and dedication in his first six plenipotential months. — 1977 formsmore plenipotential · most plenipotential
