3 ms·

You are thinking about "unarguably". ;)

• Koshkin 6y ago
  No, I was talking about the now usual in the English-speaking practice amplification of its meaning as "can be supported or shown by persuasive argument", e.g., That is arguably the best book on the subject. https://www.thefreedictionary.com/arguably https://www.thefreedictionary.com/arguably