WordReference Random House Unabridged Dictionary of American English © 2026
black′ dog′, [Informal.]
  1. Informal Termsmelancholy;
    despondency;
    the blues:The black dog is over him.
  • 1700–10

'black dog' also found in these entries (note: many are not synonyms or translations):
attributive

Forum discussions with the word(s) "black dog" in the title:


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