The phrase "audacious call" is correct and usable in written English.
It can be used to describe a bold or daring decision or request, often in a context where such a move is unexpected or risky.
Example: "The CEO's audacious call to expand into international markets surprised many investors."
Alternatives: "bold decision" or "daring request".
A premise in the articles, which I believe to be false, is that doing what these audacious scientists call "regular stuff" is a bad habit that promotes a false sense of security and makes you part of an undifferentiated crowd.
Brownlee adhered to a conservative view of how politics should be conducted, and was perhaps put off by the audacious telephone call; despite an apology from Coldwell, Brownlee did not indicate any further interest in running for the CCF.
Even the secretary general of the United Nations, Ban Ki-moon, lavished praise on the audacious project, called Aakash, the Hindi word for sky.
And so in 1968, while the world prepared itself for a man to walk on the moon, nine men set sail from England in nine small boats, racers in an audacious challenge called the Golden Globe.
Paul Sargent Clark in The Hollywood Reporter called the film "powerful and audacious", while Newsweek called it "a harmless, mindless, pro-youth saga calculated to shake up only the box office".
If he were audacious, Bernie could call for mass protest during the actual presidential campaign.
Their snooze, however, coincided with an audacious Republican strategy called REDMAP, short for the Redistricting Majority Project.
Now comes a new release: an audacious double album called "The Weight of These Wings," which Lambert has decided to promote by saying virtually nothing at all.
Holding the groundbreaking ceremony at Rutgers University in New Brunswick even before voters decide the matter — a move that stem cell research opponents called audacious — was intentional, said an administration official who helped plan the strategy but who spoke on the condition of anonymity because the person was not authorized to talk about it.
The other vessels are at various stages in the design and build process and will be called Audacious, Anson, Agamemnon and Ajax.
