The phrase "absolutely unprecedented" is correct and usable in written English.
It can be used to describe a situation or event that has never happened before and is completely unique in its nature.
Example: "The global response to the pandemic was absolutely unprecedented, with countries implementing measures never seen before in history."
Alternatives: "completely unheard of" or "entirely novel".
That is absolutely unprecedented".
And in my travels, absolutely unprecedented.
"It would be absolutely unprecedented for a president to try to reverse a national monument declaration by a previous president".
"The explosion phenomena abounded in absolutely unprecedented inventions in solid geometry … No adequate vocabulary existed," he wrote.
The pace of the recent drop in fuel prices is "absolutely unprecedented," said Tom Kloza, publisher and chief analyst for the Oil Price Information Service.
"But the governor is asking people to tighten their belts in a time when the economy is growing, and that is absolutely unprecedented".
The really shocking reality of a cultural landscape awash with "revivals of revivals" and "citations of citations" is that there is absolutely nothing unprecedented about it whatsoever.
Besides fielding more powerful tanks, troop carriers, and artillery tubes, post-1945 ground forces also introduced entire families of weapons that were absolutely new and unprecedented.
Fortunately, a study of the thing that the Brain Activity Map seeks to measure — the activity of billions of individual neurons, measured simultaneously — is entirely unprecedented, absolutely necessary, and vastly more fine-grained than the target of the Human Connectome Project.
Fortunately, a study of the thing that the Brain Activity Map seeks to measure the activity of billions of individual neurons, measured simultaneously is entirely unprecedented, absolutely necessary, and vastly more fine-grained than the target of the Human Connectome Project.
It sometimes seems immoderate to claim really exceptional personal experiences, even though some of those experiences, particularly the painful ones, leave you with the worst feelings of isolation, feelings that have all the character of an absolutely individual, completely unprecedented experience — but you always find out that you aren't alone.
