LIBERTARIAN Meaning of LIBERTARIAN in English [ ˌlɪbə'tɛ:rɪən ]■ noun1》 an adherent of ~ism. 2》 a person who believes in free will.OriginC18: from liberty , on the pattern of words such as unitarian . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004