Stagnant (adjective)
بے حرکت، جمود کا شکار
(of a body of water or the atmosphere of a confined space) having no current or flow and often having an unpleasant smell as a consequence.
Example: “a stagnant ditch”
Hiatus (noun)
خلل، نقص
a pause or break in continuity in a sequence or activity.
Example: “there was a brief hiatus in the war with France”