Poisonousnesses [noun]
Definition of Poisonousnesses:
malevolence
Opposite/Antonyms of Poisonousnesses:
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Sentence/Example of Poisonousnesses:
The poisonousness of this latter salt, apart from all other objections, rules such a method out.
Primitive literature and legend are full of stories of the poisonousness of human saliva and the deadliness of the human bite.