#1 downhearted s. [gloomy, grim, blue, depressed, dispirited, down, downcast, down in the mouth, low, low-spirited] filled with melancholy and despondency ; "gloomy at the thought of what he had to face"; "gloomy predictions"; "a gloomy silence"; "took a grim view of the economy"; "the darkening mood"; "lonely and blue in a strange city"; "depressed by the loss of his. wn