se·di·tion /si-'di-shən/ n [Latin seditio, literally, separation, from sed apart + itio act of going, from ire to go]: the crime of creating a revolt, disturbance, or violence against lawful civil authority with the intent to cause its overthrow or destruction compare criminal syndicalism, sabotage
se·di·tious /-shəs/ adj
se·di·tious·ly adv
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.