1. A state of partial or total darkness
   "he struck a match to dispel the gloom";
   - somberness [US], sombreness [Brit, Cdn]
    
2. A feeling of melancholy apprehension
   "The gloom of the rainy day matched his mood";
   - gloominess, somberness [US], sombreness [Brit, Cdn]
    
3. An atmosphere of depression and melancholy
   "gloom pervaded the office";
   - gloominess, glumness

Sounds like: gins, jiloom, g

Derived forms: glooms

Type of: ambiance, ambience, apprehension, apprehensiveness, atmosphere, dread, melancholy, misgiving, semidarkness

Encyclopedia: Gloom, Despair and Agony On Me