The adjective bleak means gloomy, cold, not cheerful or not welcoming. It also refers to something with little or no hope in the future.

Synonyms are depressing, gloomy, graceless or sullen.

The word origins from Old Norse bleikr meaning “pale, whitish, blond”, Proto-Germanic blaika- meaning “shining, white” (source also from Old Saxon blek which means “pale, shining”, and Dutch bleek, Old High German bleih, German bleich).

Her face looks bleak.

His cheerful life became bleak after the breakup.

He feels so bleak that he wants to isolate himself from others.