adjective

lethal

lethal, deadly, fatal

This poison is lethal to humans.

This poison is lethal to humans.

He delivered a lethal blow to his opponent.

He delivered a lethal blow to his opponent.

lethal ((to sb./sth.)) to be deadly to (sb./sth.) The snake's venom is lethal to humans.

a lethal ((noun)) a deadly (noun) He received a lethal injection.

Synonyms: deadly, fatal, mortal; Antonyms: harmless, safe

From Latin 'lethalis', from 'lethum' (death). Related to the mythological River Lethe, which caused forgetfulness.

Think of the mythological river 'Lethe' (river of forgetfulness in the underworld) - 'lethal' leads to the underworld.

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