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1. An atmosphere of depression and melancholy
   - gloom, glumness
    
2. A feeling of melancholy apprehension
   - gloom, somberness, sombreness
    
3. The quality of excessive mournfulness and uncheerfulness
   - lugubriousness, sadness

Derived forms: gloominesses

See also: gloomy

Type of: ambiance, ambience, apprehension, apprehensiveness, atmosphere, dread, melancholy, uncheerfulness