The phrase "a confident authority" is correct and usable in written English.
It can be used to describe someone who possesses both confidence and expertise in a particular area or subject.
Example: "The speaker was a confident authority on climate change, captivating the audience with her knowledge and passion."
Alternatives: "a self-assured expert" or "a knowledgeable leader".
Especially when singing in Arabic, she became a passionate, multilayered interpreter negotiating the complex melismas and curlicues of her long-lined folk songs with a confident authority.
The much-celebrated 'Modi wave' has penetrated and prevailed across the country, with a confident authority that is reflected in the BJP's simple yet hard-hitting pitch, "Ab ki baar, Modi sarkaar" (This time around, go for Modi government).
Confident authority is an appropriate tone for straight reportage, but it's become the default of columnists, essayists and bloggers, one that's so reflexive that some of them seem to forget it's a pose.
Golf Ball is an example of the emerging "confident authority" of his single-image paintings with its "Rock of Gibraltar-like thereness".
His tone at times struggled to match the confident authority of Schiff, playing on a new model Bösendorfer.
Then, by 1967 — so subtly, but unmistakably — they have acquired confident authority and depth charges of emotion.
Confident authority – not unallied to maleness – is conveyed by the way she assumes the right to take up space.
Tianjin's deputy mayor, He Shushan, said he was confident authorities would soon "give victims and the people a full explanation".
The commonwealth attorney in Bedford County, Randy Krantz, told TV station WDBJ on Monday that he is confident authorities are close to solving the case.
Together you'll support each other in becoming whole, living from a place of confident self-authority and soul.
The new leader of the council, Dick Walsh, admitted the report made for "challenging reading" but said he was confident the authority could rise to those challenges.
