Lethal Synonyms and Antonyms

lē'thəl

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Synonyms for Lethal

Suggestive of death:
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(Computing) Causing a sudden end to the running of a program.
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The definition of dangerous is something that is potentially harmful, damaging or likely to cause an accident or injury.
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Susceptible to death by aging, sickness, injury, or wound; not immortal. [from 14th c.]
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The definition of deathly is something that is related to or likely to cause death.
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Containing life; living.
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Poisonous or poisoned
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Containing sufficient poison to be dangerous
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(Medicine) Tending to metastasize:
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Antonyms for Lethal

Not intended to harm or offend; inoffensive.
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Free from danger or injury; undamaged or unhurt:
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Describing that which causes or preserves life, often for that which is essential to survival.
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Providing assistance; useful.
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Receiving benefit
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Words Related to Lethal

Causing or capable of causing harm; injurious.
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Of a performance or speech, in person.
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Find another word for lethal. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for lethal, like: deadly, fatal, harmful, dangerous, mortal, harmless, live, deathly, vital, poison and poisonous.