Meanings of assuredness of in English

In one instance I'm talking about the arrogance and assuredness of Byers' dismissal of Harris-Perry.

And he talks with all the self- assuredness of a seasoned political campaigner while juggling his Year 9 studies.

We can actually use that as a marketing angle. When Jones met Clifford, he marveled at the assuredness of his plan.

As Martin Kaymer's coronation as the new US Open champion was played out with all the assuredness of G(...)

Similarly, the assuredness of Lydia Williams in goal proved pivotal, making several crucial saves to deny Caroline Graham Hansen and her compatriots.

Even the simpler, humbler structures in the small, unnoticed towns have an astonishing beauty, an integrity, an assuredness of style and grace.

This was not the assuredness of the Spartan ways being superior to all others -shehad slipped into vainglory and this was her punishment.

Why, indeed there are a many things unknown to you, Messire de Logreus, in a world where nobody gets any assuredness of knowledge about anything.

But Europe's most powerful leader has lost some of her self- assuredness of late and the anti-immigrant Alternative for Germany (AfD) is set for big gains.