sedition actglossary / SEDITION ACT Sedition Act. Hist. A 1798 federal statute that prohibited the malicious publication of defamatory material about the government, Congress, or the President. • The act expired in 1801. 词条贡献者 双语律师Jason,国内知名法学院民商法专业,擅长翻译有关体育博彩领域的法律文件。