pluranimity UK /ˌplʊə.ɹəˈnɪ.mɪ.ti/US /ˌplʊ.ɹəˈnɪ.mɪ.ti/ noun1 •(rare) Diversity of opinions; (also) an instance of this.As the progress of affairs is from simple to compound, so the progress of thought in the majority of minds must be from clear to confused, from certain to doubtful, from unanimity to pluranimity. — 1839