| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | difficult |
| Synonyms: | arduous, brutal, criminal, cruel, dangerous, deadly, destroying, destructive, devastating, exhausting, fell, ferocious, harrowing, hellish, killing, lethal, ruinous, sapping, savage, strenuous, unpleasant |
| Antonyms: | easy, facile, pleasant |
| Main Entry: | deadly |
| Part of Speech: | adjective |
| Definition: | causing end of life |
| Synonyms: | baleful, baneful, bloodthirsty, bloody, cannibalistic, carcinogenic, cruel, dangerous, death-dealing, deathly, deleterious, destroying, destructive, fatal, grim, harmful, homicidal, injurious, internecine, killing, lethal, malignant, mortal, mortiferous, murderous, noxious, pernicious, pestiferous, pestilent, pestilential, poisonous, ruthless, savage, slaying, suicidal, toxic, unrelenting, venomous, violent, virulent |
| Notes: | deadly means causing or capable of causing death while deathly means having the physical appearance of death |
| Antonyms: | animating, energizing, harmless, healthful, healthy, invigorating, wholesome |
| Main Entry: | ferocious |
| Part of Speech: | adjective |
| Definition: | violent, barbaric |
| Synonyms: | barbarous, bloodthirsty, brutal, brutish, cruel, fell, feral, fierce, frightful, grim, implacable, inhuman, inhumane, lupine, merciless, murderous, pitiless, predatory, rapacious, ravening, ravenous, relentless, ruthless, sanguinary, savage, tigerish, truculent, unmerciful, unrestrained, untamed, vehement, vicious, voracious, wild, wolfish |
| Antonyms: | gentle, innocent, kind, mild, nonviolent, tame, tender |
| Main Entry: | fierce |
| Part of Speech: | adjective |
| Definition: | violent, menacing |
| Synonyms: | angry, animal, ape, awful, barbarous, bloodthirsty, blustery, boisterous, bold, brutal, brutish, cruel, cutthroat, dangerous, enraged, fell, feral, ferocious, fiery, flipped, frightening, furious, horrible, howling, impetuous, infuriated, intense, malevolent, malign, murderous, passionate, powerful, primitive, raging, raving, relentless, savage, stormy, strong, tempestuous, terrible, threatening, tigerish, truculent, tumultous/tumultuous, uncontrollable, untamed, vehement, venomous, vicious, wild |
| Antonyms: | calm, gentle, kind, meek, nonviolent, peaceful, tame, tender, unthreatening |
| Main Entry: | gory |
| Part of Speech: | adjective |
| Definition: | bloody, horrible |
| Synonyms: | bleeding, blood-soaked, bloodletting, bloodstained, imbrued, murderous, offensive, sanguinary, sanguine |
| Antonyms: | mild, pleasant, pleasing |
| Main Entry: | harmful |
| Part of Speech: | adjective |
| Definition: | injurious, hurtful |
| Synonyms: | adverse, bad, baleful, baneful, calamitous, cataclysmic, catastrophic, consumptive, corroding, corrupting, crippling, damaging, deleterious, destructive, detrimental, dire, disadvantageous, disastrous, evil, harassing, incendiary, inimical, internecine, malefic, malicious, malignant, menacing, mischievous, murderous, nocuous, noxious, painful, pernicious, pestiferous, pestilential, risky, ruinous, sinful, sinister, subversive, toxic, undermining, unhealthy, unsafe, unwholesome, virulent |
| Main Entry: | lethal |
| Part of Speech: | adjective |
| Definition: | deadly |
| Synonyms: | baleful, dangerous, deathly, destructive, devastating, fatal, harmful, hurtful, malignant, mortal, mortiferous, mortuary, murderous, necrotic, noxious, pernicious, pestilent, pestilential, poisonous, virulent |
| Antonyms: | beneficial, harmless, helpful, life-giving |
| Main Entry: | malevolent |
| Part of Speech: | adjective |
| Definition: | hateful |
| Synonyms: | bad-natured, baleful, catty, despiteful, dirty, evil, evil-minded, hellish, hostile, lousy, malicious, malign, malignant, murder, murderous, pernicious, poison, rancorous, rough, sinister, spiteful, tough, vengeful, vicious, vindictive, waspish, wicked |
| Antonyms: | amiable, harmless, kind, liking, loving |
| Main Entry: | mortal |
| Part of Speech: | adjective |
| Definition: | deadly |
| Synonyms: | bitter, death-dealing, deathly, destructive, dire, ending, extreme, fatal, grave, great, grievous, grim, intense, killing, last, lethal, malignant, merciless, monstrous, mortiferous, murderous, noxious, pestilent, pestilential, poisonous, relentless, remorseless, ruthless, severe, terminal, terrible, unrelenting |
| Antonyms: | invigorating, lifegiving, permanent, refreshing |