Grim (?), a. [Compar.Grimmer (–mer); superl. Grimmest (�).] [AS. grim; akin to G. grimm, equiv. to G. & D. grimmig, Dan. grim, grum, Sw. grym, Icel. grimmr, G. gram grief, as adj., hostile; cf. Gr. �, a crushing sound, � to neigh.] Of forbidding or fear-inspiring aspect; fierce; stern; surly; cruel; frightful; horrible.
Whose grim aspect sets every joint a-shaking. Shak.
The ridges of grim war. Milton.
Syn.— Fierce; ferocious; furious; horrid; horrible; frightful; ghastly; grisly; hideous; stern; sullen; sour.