Thesaurus

fatal

adjective

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 of fatal calamitous, cataclysmal (or cataclysmic), catastrophic, damning, destructive, disastrous, fateful, ruinous, unfortunate Words Related to fatal 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 of fatal 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 of fatal baleful, deathly, deadly, fell, killer, lethal, mortal, murderous, pestilent, terminal, vitalWords Related to fatal 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 of fatal beneficial, restorative, salubrious, salutary; alleviative, corrective, curative, remedial, tonic; advantageous, beneficial, useful; nonpoisonous, nontoxic, safeAntonyms of fatal healthful, healthy, nonfatal, nonlethal, wholesome

Synonym Discussion of fatal

deadly, mortal, fatal, lethal mean causing or capable of causing death. deadly applies to an established or very likely cause of death.
    • a deadly disease
mortal implies that death has occurred or is inevitable.
    • a mortal wound
fatal stresses the inevitability of what has in fact resulted in death or destruction.
    • fatal consequences
lethal applies to something that is bound to cause death or exists for the destruction of life.
    • lethal gas

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