The phrase "about the genuineness" is correct and usable in written English.
It can be used when discussing the authenticity or truthfulness of something, such as a statement, object, or situation.
Example: "The committee held a meeting to discuss concerns about the genuineness of the documents submitted."
Alternatives: "regarding the authenticity" or "concerning the validity".
And there can happily not be the slightest doubt in the world about the genuineness of the manuscript".
On Manus Island, the Iranian refugee and journalist Behrouz Boochani said that refugees, already sceptical about the genuineness of the US deal, believed it was all but dead.
The Sierra Club, a liberal advocacy group, echoed that assessment, quickly issuing a statement that expressed deep skepticism about the genuineness of Mr. Bush's commitment to national parks.
In an off-air encounter captured on a camera then posted on YouTube, a conservative talk radio host in Iowa, Jan Mickelson, engaged in a heated debate with Mr. Romney about the genuineness of his commitment to his Mormon faith because of his past views on abortion.
"There are real concerns about the genuineness of consent in domestic violence cases," he added.
Again doubts arose about the genuineness of declared winners; the winner of the £25,000 sweepstake for the 1914 Derby proved on enquiry to be the sister-in-law of one of Bottomley's close associates.
It could also be called, "How did I, specifically, get here?" It's kind of corny to talk about it, and some doubt the genuineness of the feeling as merely an opportunity to drop a name or two.
He said he was not questioning the credibility of the women who made the allegations, nor the "genuineness of their feelings of regret about having had consensual sex with Mr Assange".
Michael talks about the spiritual joy of selfless service to others, and the genuineness of Bernie's smile.
I like the genuineness of it.
I liked the vibrancy of the operation and the genuineness of the people.
