Meaning ofdown in the dumpsin English

Adjective

1. feeling sad; lacking energy (emotionally low)
   After a few days of rainy weather, I was feeling down in the dumps.
   Synonyms:

   depresseddespondentdishearteneddowncastgloomymelancholymoroseunhappy
   Antonyms:

   cheerfulelatedeuphorichappyupbeat