Dull, gloomy, and depressing; lacking brightness, cheerfulness, or interest.
From Old English 'dreorig' (gory, sad), possibly related to Old Norse 'dreyrr' (bloody), originally meaning sad or sorrowful before evolving to mean gloomy or bleak.
Seasonal Affective Disorder (SAD) is actually worse in places with dreary weather—not just because of darkness, but because gray skies reduce the contrast in visual perception, which makes brains perceive less stimulation overall.
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