The phrase "a rather authoritative" is correct and usable in written English.
It can be used to describe something that has a commanding or influential quality, often in the context of a statement, opinion, or source of information.
Example: "The report provided a rather authoritative perspective on the issue, leaving little room for doubt."
Alternatives: "somewhat commanding" or "fairly influential".
However, Google Flu Trends has shown poor performance in estimating the burden of influenza [ 17], correlates better with influenza-like illness than with laboratory-confirmed influenza [ 18], cannot accommodate data from healthcare settings, and is considered a supplementary rather than authoritative source for influenza surveillance [ 19– 219.
Timur Askerov – a rather routine Siegfried in Swan Lake – delivers an enjoyably authoritative Oberon, with an armoury of the featheriest, beaten jumps.
Yet, whereas reformulations can be woven into verbal exchanges in a rather unobtrusive manner, communication can easily relapse into a transmissive and authoritative mode when teachers take over a dominant part (Chin 2006).
For example, especially in the IFSP meeting process with professionals, the officials had a stronger, more authoritative position while the service coordinator who supposedly should be their advocate seemed to have a rather insignificant, powerless voice.
The word they first used, Dr. Leavitt said, made it "sound like God had been working out at the gym," conveying a vision of physical strength rather than authoritative power.
Expanding this approach across Europe could ultimately lead to the demise of the right of individual petition, in favour of a judicial dialogue where the Strasbourg court is used as a sounding board rather than an authoritative voice.
And then this odd but rather lovingly authoritative voice came out of me.
They said they wanted to collaborate in decisions about their care but felt they couldn't because doctors often acted authoritarian, rather than authoritative.
