D defs.my
Entry 2 senses Webster, 1913

Stagnant

/(-nant)/ · Stag·nant · IPA /ˈstæɡnənt/
01 a. That stagnates; not flowing; not running in a current or steam; motionless; hence, impure or foul from want of motion; as, a stagnant lake …
  1. 1.
    That stagnates; not flowing; not running in a current or steam; motionless; hence, impure or foul from want of motion; as, a stagnant lake or pond; stagnant blood in the veins.
  2. 2.
    Not active or brisk; dull; as, business is stagnant.
    “That gloomy slumber of the stagnant soul.” Johnson.
    “For him a stagnant life was not worth living.” — Palfrey.