Synonyms for grim

Adjective

1. grim, inexorable, relentless, stern, unappeasable, unforgiving, unrelenting, implacable (vs. placable)

usage: not to be placated or appeased or moved by entreaty; "grim determination"; "grim necessity"; "Russia's final hour, it seemed, approached with inexorable certainty"; "relentless persecution"; "the stern demands of parenthood"

2. ghastly, grim, grisly, gruesome, macabre, alarming (vs. unalarming)

usage: shockingly repellent; inspiring horror; "ghastly wounds"; "the grim aftermath of the bombing"; "the grim task of burying the victims"; "a grisly murder"; "gruesome evidence of human sacrifice"; "macabre tales of war and plague in the Middle ages"; "macabre tortures conceived by madmen"

3. black, grim, mordant, sarcastic (vs. unsarcastic)

usage: harshly ironic or sinister; "black humor"; "a grim joke"; "grim laughter"; "fun ranging from slapstick clowning ... to savage mordant wit"

4. blue, dark, depressing, disconsolate, dismal, dispiriting, gloomy, grim, cheerless (vs. cheerful), uncheerful

usage: causing dejection; "a blue day"; "the dark days of the war"; "a week of rainy depressing weather"; "a disconsolate winter landscape"; "the first dismal dispiriting days of November"; "a dark gloomy day"; "grim rainy weather"

5. dour, forbidding, grim, unpleasant (vs. pleasant)

usage: harshly uninviting or formidable in manner or appearance; "a dour, self-sacrificing life"; "a forbidding scowl"; "a grim man loving duty more than humanity"; "undoubtedly the grimmest part of him was his iron claw"- J.M.Barrie

6. gloomy, grim, darkening, hopeless (vs. hopeful)

usage: characterized by hopelessness; filled with gloom; "gloomy at the thought of what he had to face"; "gloomy predictions"; "a gloomy silence"; "took a grim view of the economy"; "the darkening mood"