Libertarian UK /ˌlɪb.əˈtɛə.ɹɪ.ən/US /ˌlɪb.əɹˈtɛ.ɹi.ən/adjective 1noun 1forms 1 adjective1 •Of, or pertaining to, a Libertarian Party.The results also revealed a striking data point: Libertarian candidate Jo Jorgensen’s share of the vote in some of these states was higher than margins between Joe Biden and Donald Trump. — 2020 noun1 •A member of a political party or movement that uses the term "Libertarian" in its name (e.g., the Libertarian Party of the United States); one who is likely to support policies that are libertarian.To many, it seemed that the Libertarians were a genuinely relevant third party in US politics, which is overwhelmingly dominated by Republicans and Democrats. — 2020 formsLibertarians