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Adjective: grim (grimmer,grimmest)  grim
  1. Not to be placated, appeased or moved by entreaty
    "grim determination"; "grim necessity";
    - inexorable, relentless, stern, unappeasable, unforgiving, unrelenting
  2. Shockingly repellent; inspiring horror
    "the grim aftermath of the bombing";
    - ghastly, grisly, gruesome, macabre, sick
  3. Harshly ironic or sinister
    "a grim joke"; "grim laughter";
    - black, mordant
  4. Harshly uninviting or formidable in manner or appearance
    "a grim man loving duty more than humanity"; "undoubtedly the grimmest part of him was his iron claw";
    - dour, forbidding
  5. Filled with melancholy and despondency
    "took a grim view of the economy";
    - gloomy, blue [informal], depressed, dispirited, down, downcast, downhearted, down in the mouth, low, low-spirited
  6. Causing dejection
    "grim rainy weather";
    - blue [informal], dark, dingy, disconsolate, dismal, gloomy, sorry, drab, drear, dreary

Derived forms: grimmest, grimmer

See also: alarming, cheerless, dejected, depressing, implacable, sarcastic, sarky [Brit, informal], uncheerful, unpleasant

Encyclopedia: Grim, Patrick