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disastrous, black, fatal, fateful, calamitous, destructive | (of events) having extremely unfortunate or dire consequences; bringing ruin | |
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destructive, devastating, ruinous, calamitous, disastrous, harmful, catastrophic, pernicious, wreckful, eradicative, wrackful | causing destruction or much damage | |
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fatal, deadly, destructive, mortal, calamitous | bringing death | |
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deleterious, hurtful, injurious, destructive, harmful, noxious | harmful to living things |