This is the 6395th most frequent German word.
düster
Gloomy; dark; somber.
In this sentence, 'düster' is used to describe an atmospheric condition, conveying a mood of darkness or shadow that relates to the appearance of the clouds.
Die düsteren Wolken zogen schnell über den Himmel.
The gloomy clouds moved quickly across the sky.
Here 'düster' describes the tone of someone's thoughts or feelings, indicating a metaphorical sense of darkness and despair.
Seine Gedanken waren düster, gefüllt mit Unsicherheit und Sorgen.
His thoughts were gloomy, filled with uncertainty and worries.
In this context, 'düster' describes the thematic or visual style of movies, suggesting themes that are dark, serious, or brooding.