The phrase "a serious declaration" is correct and usable in written English.
It can be used when referring to a formal statement or announcement that carries significant weight or importance.
Example: "The president made a serious declaration regarding the new policy changes that will affect the entire nation."
Alternatives: "a solemn statement" or "an important announcement".
We're not exactly sure what she means by that, but as a post script she added, "I still obsess over pickles," so you know it was a really serious declaration.
From her on camera musings on masturbation, to her serious declaration that "I'm not a witch," O'Donnell is the kind of candidate that was so entertaining this time around that those of us who make a living writing about candidates are hoping against all hope that she runs again.
The jabs at the opposition were bookended by more serious declarations of success about the economic summit meeting, which was held for the first time in Russia.
With an opera‐night air of anticipation and elegance, the audience proved itself open to serious declarations that "we have been had by the haves," as well as broad jokes on the Mafia stereotype itself.
Despite fiery disputes this week between the United States and other Council powers over the inspections, there is wide agreement that Iraq's faulty arms declaration is a serious lapse under Resolution 1441, the measure that set up the inspections.
As a result, homelessness remains a serious problem, as recent declarations of "homelessness emergencies" in Los Angeles and Portland, Oregon show. 1. Funding to renew all of the nearly 2.2 million vouchers that will likely be in use at the end of this year.
They also condemned the sentencing as a "serious violation" of the Universal Declaration of Human Rights and other treaties.
Mr. de Villepin said on Friday that North Korea's declaration was "a serious decision, heavy with consequences, that has to be dealt with by the United Nations Security Council".
