The state or condition of being vituperative.(noun)
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Use "vituperativeness" in a sentence
"It is hard to imagine what kind of vituperativeness would have flowed from Justice Scalia's pen if any other Justice had resorted to such anti-originalist "idiocy" in a different context."
"This is a public forum and the vituperativeness doesn't advance anything, no matter who wins."
"Where once we wrote our words and they were published on paper and we might, if we were lucky received the occasional letter to the editor, signed, disagreeing with us; now our words are published online with instant comment buttons for the deranged among us to send out whatever vituperativeness they wish at just the click of a mouse."