This is the 13641st most frequent Polish word.
pochmurnej
"Cloudy" or "gloomy" (referring to weather or mood).
Here, 'pochmurnej' is the genitive singular feminine form of the adjective, describing 'pogodzie' (weather).
Spacerowaliśmy po parku w pochmurnej pogodzie.
We walked in the park in cloudy weather.
In this sentence, 'pochmurnej' describes 'poranek' (morning), with a poetic structure.
W ten pochmurnej poranek, ptaki śpiewały niezwykle cicho.
On this cloudy morning, the birds sang very quietly.
Here, 'pochmurnej' metaphorically describes 'rozmowy' (conversation), indicating a gloomy or serious tone.