1. A sky that is dark, overcast, and lacking in brightness; often associated with cloudy, dreary weather
The gloomy sky made everyone feel depressed.
O céu sombrio deixou todos deprimidos.
2. A sky that suggests an ominous or threatening atmosphere
Under the gloomy sky, the forest looked mysterious and eerie.
Sob o céu sombrio, a floresta parecia misteriosa e assustadora.