adj. (grimmer, grimmest) 1 of stern or forbidding appearance. 2 harsh, merciless. 3 ghastly, joyless (has a grim truth in it). 4 unpleasant, unattractive. o grimly adv. grimness n. [Old English]
adj. (grimmer, grimmest) 1 of stern or forbidding appearance. 2 harsh, merciless. 3 ghastly, joyless (has a grim truth in it). 4 unpleasant, unattractive. o grimly adv. grimness n. [Old English]