Synonym: adamant, dreadful, fierce, frightful, ghastly, harsh, horrible, inflexible, merciless, rigid, rough, stern, strict, terrible, unyielding. Antonym: gentle, meek, mild, quiet. Similar words: grimace, grin, grip, grief, rim, trim, aggrieved, prime. Meaning: [grɪm] 
adj. 1. not to be placated or appeased or moved by entreaty 2. shockingly repellent; inspiring horror 3. harshly ironic or sinister 4. causing dejection 5. harshly uninviting or formidable in manner or appearance 6. characterized by hopelessness; filled with gloom.
adj. 1. not to be placated or appeased or moved by entreaty 2. shockingly repellent; inspiring horror 3. harshly ironic or sinister 4. causing dejection 5. harshly uninviting or formidable in manner or appearance 6. characterized by hopelessness; filled with gloom. 
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1 He held on to the branch like grim death.
2 He looked grim; I could tell something was wrong.
3 They painted a grim picture of growing crime.
4 When he lost his job, his future looked grim.
5 He set about the task with grim concentration.
6 His expression was grim when he told them they had lost their jobs.
7 The future looks grim.
8 The report drew a grim picture of inefficiency and corruption.
9 She stuck to her task like grim death.
10 The weather forecast is pretty grim.
11 We face the grim prospect of still higher unemployment.
12 The worldwide picture for tribal people remains grim.
13 He hung on with grim determination.
14 The house looked grim and dreary in the rain.
15 'I'll survive,' he said with a grim smile.
16 The outlook is pretty grim.
17 Her expression was grim and unpleasant.
18 There was further grim economic news yesterday.
19 She was a grim woman with a turned-down mouth.
20 Her face wore a grim,[www.Sentencedict.com] set look.
21 Yesterday's crash has grim echoes of previous disasters.
22 His mouth set into a rather grim line.
23 His face set in grim lines.
24 Kate's face was set in a grim expression.
25 Things were pretty grim for a time.
26 The report paints a grim picture of life there.
27 We received the grim news in silence.
28 The child hung onto the rail like grim death.
29 I feel pretty grim this morning.
30 I've had a grim day.
More similar words: grimace, grin, grip, grief, rim, trim, aggrieved, prime, shrimp, agriculture, primary, interim, agricultural, agribusiness, acrimony, experiment, primarily, experimental, recrimination, discrimination.