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destructive, devastating, ruinous, calamitous, disastrous, harmful, catastrophic, pernicious, wreckful, eradicative, wrackful | causing destruction or much damage | |
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noxious, harmful | injurious to physical or mental health | |
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harmful | causing or capable of causing harm | |
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damaging, prejudicial, detrimental, prejudicious, harmful | causing harm or injury | |
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deleterious, hurtful, injurious, destructive, harmful, noxious | harmful to living things | |
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mischievous, harmful, hurtful, detrimental, pernicious, noxious | deliberately causing harm or damage |