Free from commotion. Of water: Having an unruffled surface, without waves or violent current; motionless or flowing imperceptibly.

Of water or a body of water: not running or flowing; having no current or tide; still, stagnant. Also in extended use.

Of a liquid: Not flowing, stagnant, coagulated. Also of wine: That has ‘settled on the lees’.

Of water: Standing, not running away.

Stagnant, stagnating.

Not flowing or running, of water, air, (the ice of) a glacier or ice sheet, etc.; without motion or current, as a pool. Often involving…

Rendered stagnant.

= stagnant, adj.