Sitting; being or continuing in a sitting posture; working habitually in a sitting posture.Hence— Fixed; settled; permanent; remaining in the same place.Inactive; idle; sluggish: as, a sedentary life.In zoologyAbiding in one place: not migratory, as a bird.. Fixed in a tube; not errant, as a worm; belonging to the Sedentaria.Spinning a web and lying in wait, as a spider; belonging to the Sedentariæ.Affixed; attached; not free-swimming, as an infusorian, a rotifer, polyp, cirriped, mollusk, ascidian, etc.; specifically, belonging to the Sedentaria.Encysted and motionless or quiescent, as a protozoan. Compare resting-spore.Accustomed to sit much, or to pass most of the time in a sitting posture; hence, secluded.Characterized by or requiring continuance in a sitting posture: as, a sedentary profession; the sedentary life of a scholar.Resulting from inactivity or much sitting.n. A sedentary person; one of sedentary habits.n. A member of the Sedentariæ; a sedentary spider.In geology, remaining upon the rock from which it has been formed by disintegration: said of soil or loose rock material.In intern. law, said of the private property of a neutral which has remained on belligerent soil or of a neutral vessel in foreign waters. See the extract.