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Synonyms and Antonyms of fatal

  1. 1 bringing about ruin or misfortune <I made the fatal mistake of sharing my secret with the office's biggest blabbermouth> Synonyms calamitous, cataclysmal (or cataclysmic), catastrophic, damning, destructive, disastrous, fateful, ruinous, unfortunate Related Words apocalyptic (also apocalyptical); hapless, ill-fated, ill-starred, luckless; adverse, baleful, baneful, damaging, deleterious, detrimental, evil, harmful, hurtful, ill, injurious, noxious, pernicious, prejudicial Near Antonyms fluky (also flukey), fortuitous, fortunate, happy, lucky, providential; auspicious, bright, encouraging, fair, golden, heartening, hopeful, optimistic, promising, propitious, rose-colored, rosy, upbeat

  2. 2 likely to cause or capable of causing death <that snake's venom is fatal unless the victim is given the antidote almost immediately> Synonyms baleful, deathly, deadly, fell, killer, lethal, mortal, murderous, pestilent, terminal, vitalRelated Words baneful, deleterious, destructive, harmful, injurious, noxious, pernicious, truculent; infectious, infective, pestilential, poisonous, sublethal, toxic, virulent; dangerous, grave, grievous, hazardous, jeopardizing, menacing, parlous, perilous, risky, serious, threatening, ugly, unhealthy, unsound; bloody, internecine, sanguinary, sanguineNear Antonyms beneficial, restorative, salubrious, salutary; alleviative, corrective, curative, remedial, tonic; advantageous, beneficial, useful; nonpoisonous, nontoxic, safeAntonyms healthful, healthy, nonfatal, nonlethal, wholesome

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to permeate or influence as if by dyeing

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