grim (Adjective) — Not to be placated, appeased or moved by entreaty. ex. "grim determination" ex. "grim necessity"
grim (Adjective) — Shockingly repellent; inspiring horror. ex. "the grim aftermath of the bombing"
grim (Adjective) — Harshly ironic or sinister. ex. "a grim joke" ex. "grim laughter"
grim (Adjective) — Harshly uninviting or formidable in manner or appearance. ex. "a grim man loving duty more than humanity" ex. "undoubtedly the grimmest part of him was his iron claw"
grim (Adjective) — Filled with melancholy and despondency. ex. "took a grim view of the economy"
grim (Adjective) — Causing dejection. ex. "grim rainy weather"