Antonyms of adj gloomy

3 senses of gloomy

Sense 1
glooming, gloomy, gloomful, sulky -- (depressingly dark; "the gloomy forest"; "the glooming interior of an old inn"; "`gloomful' is archaic")

INDIRECT (VIA dark) -> light -- (characterized by or emitting light; "a room that is light when the shutters are open"; "the inside of the house was airy and light")

Sense 2
gloomy, grim, blue, depressed, dispirited, down (predicate), downcast, downhearted, 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 job"; "a dispirited and resigned expression on her face"; "downcast after his defeat"; "feeling discouraged and downhearted")

INDIRECT (VIA dejected) -> elated -- (exultantly proud and joyful; in high spirits; "the elated winner"; "felt elated and excited")

Sense 3
blue, dark, dingy, disconsolate, dismal, gloomy, grim, sorry, drab, drear, dreary -- (causing dejection; "a blue day"; "the dark days of the war"; "a week of rainy depressing weather"; "a disconsolate winter landscape"; "the first dismal dispiriting days of November"; "a dark gloomy day"; "grim rainy weather")

INDIRECT (VIA depressing) -> cheerful -- (being full of or promoting cheer; having or showing good spirits; "her cheerful nature"; "a cheerful greeting"; "a cheerful room"; "as cheerful as anyone confined to a hospital bed could be")

Similarity of adj gloomy

3 senses of gloomy

Sense 1
glooming, gloomy, gloomful, sulky -- (depressingly dark; "the gloomy forest"; "the glooming interior of an old inn"; "`gloomful' is archaic")
       => dark (vs. light) -- (devoid of or deficient in light or brightness; shadowed or black; "sitting in a dark corner"; "a dark day"; "dark shadows"; "dark as the inside of a black cat")

Sense 2
gloomy, grim, blue, depressed, dispirited, down (predicate), downcast, downhearted, 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 job"; "a dispirited and resigned expression on her face"; "downcast after his defeat"; "feeling discouraged and downhearted")
       => dejected (vs. elated) -- (affected or marked by low spirits; "is dejected but trying to look cheerful")

Sense 3
blue, dark, dingy, disconsolate, dismal, gloomy, grim, sorry, drab, drear, dreary -- (causing dejection; "a blue day"; "the dark days of the war"; "a week of rainy depressing weather"; "a disconsolate winter landscape"; "the first dismal dispiriting days of November"; "a dark gloomy day"; "grim rainy weather")
       => depressing (vs. cheerful), cheerless, uncheerful -- (causing sad feelings of gloom and inadequacy; "the economic outlook is depressing"; "something cheerless about the room"; "a moody and uncheerful person"; "an uncheerful place")