Definition of "glooming" [gloom•ing]

• Present participle of gloom. (verb)
• Twilight of morning or evening; the gloaming (noun)

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• "But the lord of Bellister sat on, "glooming" morbidly to himself."
• "Here and there, too, the dusty-green reaches were pointed by the dark spire of a cypress, alone, in a kind of glooming isolation; here and there a blossoming peach or almond, gaily pink, sent an inexpressible little thrill of gladness to one's heart."
• "With one accord they all looked at the stranger, for they had hardly seem him well in the glooming twilight."