se|di|tion (si dish'ên) n. 1. the stirring up of discontent, resistance, or rebellion against the government in power 2. [Archaic] revolt or rebellion - se|di'tion|ary n., adj. --se|di' tion|ist n. Syn. sedition applies to anything regarded by a government as stirring up resistance or rebellion against it and implies that the evidence is not overt or absolute; treason implies an overt act in violation of the allegiance owed to one's state, specif. a levying war against it or giving aid or comfort to its enemies