not flowing or running, as water, air, etc.

stale or foul from standing, as a pool of water.

characterized by lack of development, advancement, or progressive movement

a stagnant economy.

inactive, sluggish, or dull.

adjective

moving

adjective

brackish , dead , dormant , filthy , foul , idle , immobile , inactive , inert , lifeless , listless , passive , putrid , quiet , sluggish , stale , standing , static , stationary , still , unmoving , dull , lethargic , monotonous , motionless , unchanging