grimmer; grimmest
Definition of grim
1
: fierce in disposition or action : savage
grim wolves
2a
: stern or forbidding in action or appearance
a grim taskmaster
3
: ghastly, repellent, or sinister in character
a grim tale
4
: unflinching, unyielding
grim determination
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Great Words for Scrabble
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Merriam-Webster unabridged
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Time Traveler for grim
The first known use of grim was before the 12th century
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