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gloom 
  n 
1 partial or total darkness 
2 a state of depression or melancholy 
3 an appearance or expression of despondency or melancholy 
4 Poetic a dim or dark place 
  vb 
5 intr to look sullen or depressed 
6 to make or become dark or gloomy 
  (C14 gloumben to look sullen; related to Norwegian dialect glome to eye suspiciously) 
 gloomful  adj 
 gloomfully  adv 
 gloomless  adj 

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