Synonyms and Antonyms of catastrophic
bringing about ruin or misfortune a catastrophic tornado destroyed the hamlet's only house of worship Synonyms calamitous, cataclysmal (or cataclysmic), fatal, damning, destructive, disastrous, fateful, ruinous, unfortunateRelated Words apocalyptic (also apocalyptical); hapless, ill-fated, ill-starred, luckless; adverse, baleful, baneful, damaging, deleterious, detrimental, evil, harmful, hurtful, ill, injurious, noxious, pernicious, prejudicialNear Antonyms fluky (also flukey), fortuitous, fortunate, happy, lucky, providential; auspicious, bright, encouraging, fair, golden, heartening, hopeful, optimistic, promising, propitious, rose-colored, rosy, upbeat
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