Something described as sedentary does or involves a lot of sitting. Sedentary can also mean "not physically active" (as in "a sedentary lifestyle") or "not migratory" (as in "sedentary birds" or "a sedentary civilization").

// Editing the dictionary is a sedentary job.

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"From open offices to home workstations, employees across industries invested in sit-stand setups with the hope of counteracting sedentary lifestyles." — Michelle Stansbury, Forbes, 25 Aug. 2025

Sedentary comes from the Latin verb sedēre, meaning "to sit." Other descendants of sedēre include dissident, insidious, preside, reside, and subsidy. Sedēre is also the base of the rare sedens, a noun that refers to a person who remains a resident of the place or region of their birth.