Pronunciation: (grim), [key]
—adj., grim•mer, grim•mest.
1. stern and admitting of no appeasement or compromise: grim determination; grim necessity.
2. of a sinister or ghastly character; repellent: a grim joke.
3. having a harsh, surly, forbidding, or morbid air: a grim man but a just one; a grim countenance.
4. fierce, savage, or cruel: War is a grim business.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.