seditious

adjective

1. of, relating to, or of the nature of sedition.
2. given to or guilty of sedition.

adjective

1. of, like, or causing sedition
2. inclined to or taking part in sedition

adj.mid-15c., from Middle French seditieux, from Latin seditiosus “full of discord, factious, mutinous,” from seditio (see sedition). Related: Seditiously; seditiousness.