a state of inactivity or stagnation, as in business or art

August is a time of doldrums for many enterprises.

the doldrums,

a belt of calms and light baffling winds north of the equator between the northern and southern trade winds in the Atlantic and Pacific oceans.

the weather prevailing in this area.

a dull, listless, depressed mood; low spirits.

noun

elation , gladness , glee , happiness , joy

noun

apathy , black mood , blahs , blue funk , blues * , boredom , bummer * , dejection , disinterest , dismals , downer , dullness , dumps * , ennui , funk * , gloom , inactivity , indifference , inertia , lassitude , letdown , listlessness , malaise , mopes , slump , stagnation , stupor , tedium , torpor , yawn * , blues , depression , despondence , despondency , dolefulness , downheartedness , dumps , dysphoria , funk , glumness , heavy-heartedness , melancholy , mope , mournfulness , sadness , unhappiness