Sedentary

Accustomed to sit much or long; as, a sedentary man.

Characterized by, or requiring, much sitting; as, a sedentary employment; a sedentary life.

Inactive; motionless; sluggish; hence, calm; tranquil.

Caused by long sitting.

Remaining in one place, especially when firmly attached to some object; as, the oyster is a sedentary mollusk; the barnacles are sedentary crustaceans.