authoritative

"But you must understand this," Mary went on, with an authoritative note in her voice.

She had not experimented to an authoritative extent with the desert pickles.

He counted very much on me, but he was authoritative and persistent.

But, placid as she was, my mother was authoritative, and could not endure any kind of constraint.

"I will stay," said Artois, with a sudden return of his authoritative manner.

There is no authoritative account of the construction of the Baltimore monument.

Once more our resolute driver, with an authoritative 'All ready!'

The versions given are the definitive and authoritative ones.

There was a certain shiftless, sullen, yet authoritative air about him as he spoke.

"Dive for the captain, one of you," an authoritative voice directed.