Definition of depression

noun (n)

• a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity (noun.state)

  Antonym: elation
  

  source: wordnet30
• a long-term economic state characterized by unemployment and low prices and low levels of trade and investment (noun.state)

  Synonym: economic crisis, slump
  

  source: wordnet30
• a sunken or depressed geological formation (noun.object)

  Synonym: natural depression
  Antonym: elevation, natural elevation
  

  source: wordnet30
• sad feelings of gloom and inadequacy (noun.feeling)

  source: wordnet30
• a period during the 1930s when there was a worldwide economic depression and mass unemployment (noun.time)

  Synonym: great depression
  

  source: wordnet30
• an air mass of lower pressure; often brings precipitation (noun.state)

  Synonym: low
  

  source: wordnet30
• a state of depression and anhedonia so severe as to require clinical intervention (noun.state)

  Synonym: clinical depression, depressive disorder
  

  source: wordnet30
• a concavity in a surface produced by pressing (noun.shape)

  Synonym: impression, imprint
  

  source: wordnet30
• angular distance below the horizon (especially of a celestial object) (noun.linkdef)

  source: wordnet30
• pushing down (noun.act)

  Example:
  Depression of the space bar on the typewriter.
  

  source: wordnet30
• The act of depressing. (noun)

  source: webster1913

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