To be in the doldrums(idioms)
Depressed or in low spirits.
Hindi meaning:उदासी में
Synonyms: Melancholy, Despondent, Gloomy, Disconsolate
Antonyms: Elated, Cheerful, Ecstatic, Euphoric
Example: I've been in the doldrums ever since my grand father died last month.
Trick to remember: Aese drums play kiye sab doldrums me chle gye. 
