The phrase "added definitively" is correct and usable in written English.
It can be used when you want to emphasize that something has been included or incorporated in a clear and final manner.
Example: "The new policy was added definitively to the company handbook to ensure all employees are aware of the changes."
Alternatives: "included firmly" or "incorporated conclusively".
As David Roberts, a reporter at the environmental news site Grist, acknowledges, "No one event can be 'definitively blamed on climate change.'" But, he adds, "definitively" is doing a lot of heavy lifting in that sentence—"it's banally, almost tautologically, true.... It's just as true for any distal cause of an event".
"These modern-looking feathers," he added, "show definitively that they evolved in dinosaurs before the emergence of birds and flight, and that therefore feathers are not an adaptation for flight".
He added Cadbury has definitively failed to put together a coherent argument to justify its existence as a stand-alone company.
"You don't have dreams of any kind," she added, not at all definitively, going high-pitched on the word "kind" and leaving her sentence suspended there, in the hope that I would contradict it.
"However, should the NFF still be embroiled in court actions or any other issue preventing it from working freely on that date, the suspension will be automatically confirmed until all problems have been definitively solved," added Fifa.
That generates time consuming retrieval tasks that have definitively no added value since they aim at seeking past information.
Some of my relatives hate the way I look, and them being Saami definitively adds to that.
As for "selfie," early evidence shows a variant spelling with a -y ending, "but the -ie form is vastly more common today and has become the accepted spelling of the word," Oxford Dictionaries declared definitively, adding, "It could be argued that the use of the -ie suffix helps to turn an essentially narcissistic enterprise into something rather more endearing".
He added: "I can say pretty definitively that that's not the case.
But they added that they had not definitively tied the deaths to the bacterial outbreak at six hospitals.
