Definition of Grim:

hopeless, horrible in manner, appearance

Synonyms of Grim:

gloomy, harsh, horrid, sour, somber, terrible, cruel, glum, grisly, ghastly, stern, gruesome, shocking, ominous, bleak, austere, barbarous, cantankerous, churlish, crusty, dogged, ferocious, fierce, forbidding, foreboding, formidable, frightful, funereal, grouchy, grumpy, hideous, implacable, inexorable, intractable, merciless, morose, relentless, resolute, ruthless, severe, sinister, stubborn, sulky, sullen, surly, truculent, unrelenting, unyielding, crabbed, glowering, scowling, splenetic

Opposite/Antonyms of Grim:

hopeful, good, nice, gentle, happy, sunny, light, bright, comforting, pretty, wonderful, pleasant, kind, pleasing, encouraging, joyful, cheerful

Sentence/Example of Grim: