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Human impact on the environment is increasing at an unprecedented rate.
  not having happened before; or nothing similar having happened before
 Mark word for later review on this computer
unprecedented unprecedentedly
Standard Prefix:  "Un" at the beginning of a word, often means "not" as is "unsatisfactory", or "unnecessary".
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  • Human impact on the environment is increasing at an unprecedented rate.
  • The targeting of civilians is unprecedented in the conflict.
  • This is as unprecedented as it is dangerous.
    Hamilton, Alexander  --  Federalist Papers Authored by Alexander Hamilton
  • He went to his work with unprecedented seriousness.
    John Steinbeck  --  The Red Pony

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  • Based on what I’d seen back in Carolina and had experienced at the palace, this was unprecedented.
    Kiera Cass  --  The Elite
  • But he found himself with an unprecedented problem.
    John Green  --  An Abundance of Katherines
  • The IPO raised $3 billion, unprecedented but not unexpected, and with all monetary concerns behind him, and with Stenton and Bailey aboard, Ty was free to float, to hide, to disappear.
    Dave Eggers  --  The Circle
  • It promises to be a work unprecedented in the history of academic scholarship.
    Ransom Riggs  --  Miss Peregrine’s Home for Peculiar Children
  • When the BOP showed Walking Tall, the turnout for every screening all weekend long was unprecedented.
    Piper Kerman  --  Orange Is the New Black
  • An apparent robbery-murder in a popular downtown business was unprecedented.
    Bryan Stevenson  --  Just Mercy

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  • It occurs to me that I might be in the unprecedented position of being able to glean some intelligence on them.
    Susan Ee  --  Angelfall
  • "You have been given an unprecedented opportunity to put the past behind you," the Chancellor was saying.
    Kass Morgan  --  The 100
  • Truly, it was an event so unprecedented, it should have ripped apart the cosmos.
    Rick Riordan  --  The Trials of Apollo
  • During the years of unprecedented inhumanity, Schindler saw value in the very people the Nazis labeled as less than human and sought to eradicate.
    Leon Leyson  --  The Boy on the Wooden Box
  • This is unprecedented, Your Honor.
    Scott Pratt  --  An Innocent Client
  • Nehemiah Trot, the poet, from the tumbled northwestern side of the graveyard, had begun to declaim his thoughts on the matter, although what they were no person listening could have said, when something happened; something to silence each opinionated mouth, something unprecedented in the history of that graveyard.
    Neil Gaiman  --  The Graveyard Book
  • Then we went on an enormous shopping spree, unprecedented in my lifetime.
    Edward Bloor  --  Tangerine
  • To most people, it might not seem like a lot, but to Lorenzo it was unprecedented.
    Joshua Davis  --  Spare Parts
  • Yesterday a truck full of cattle intended for the slaughterhouse was mixed up with a shipment of pharmaceuticals, resulting in the hilarious and unprecedented chaos you see on your screen.
    Lauren Oliver  --  Delirium
  • I’m not sure what I’m supposed to say to her, so in a bold and unprecedented move, I do nothing.
    Katja Millay  --  The Sea of Tranquility
  • But it could scarcely have been an unprecedented thing in Poland to have an anti-Semitic parent.
    William Styron  --  Sophie’s Choice
  • He knew it would be some unprecedented combination of peoples.
    Dave Eggers  --  A Hologram for the King
  • You are so busy being you that you have no idea how utterly unprecedented you are.
    John Green  --  The Fault in Our Stars
  • The whole situation is unprecedented.
    Suzanne Collins  --  Catching Fire
  • She was appalled by West Egg, this unprecedented "place" that Broadway had begotten upon a Long Island fishing village — appalled by its raw vigor that chafed under the old euphemisms and by the too obtrusive fate that herded its inhabitants along a short-cut from nothing to nothing.
    F. Scott Fitzgerald  --  The Great Gatsby
  • Why else would the Gamemakers have made this unprecedented change in the rules?
    Suzanne Collins  --  The Hunger Games
  • But in return for this unprecedented request, Soldier Everdeen has promised to devote herself to our cause.
    Suzanne Collins  --  Mockingjay
  • You must make allowance for this poor girl, placed in so unprecedented a position.
    Arthur Conan Doyle  --  The Adventures of Sherlock Holmes
  • Sun flares are normal, but these were unprecedented, massive, spiking higher and higher—and once they were noticed, it was only minutes before their heat slammed into Earth.
    James Dashner  --  The Maze Runner
  • On Fifth Avenue that summer, demolition was soon to begin on the Waldorf-Astoria Hotel, clearing the way for a skyscraper of unprecedented proportions, the Empire State Building.
    Laura Hillenbrand  --  Unbroken
  • All here is so unprecedented, so changed, so sudden and unfair, that I am absolutely lost.
    Charles Dickens  --  A Tale of Two Cities
  • If the king were to raise up new Riders under his command, it would allow him to expand the Empire to an unprecedented size.
    Christopher Paolini  --  Eragon
  • Francon took him out to lunch—an unprecedented honor for an employee.
    Ayn Rand  --  The Fountainhead
  • Trevino kicked the door shut and then, in an unprecedented display of violence, he killed the traitor, by beating him to death.
    Laura Esquivel  --  Like Water for Chocolate
  • Eliza’s flight—an unprecedented event on the place—was also a great accessory in stimulating the general excitement.
    Harriet Beecher Stowe  --  Uncle Tom’s Cabin
  • Every one knows the history of the famous return from Elba, a return which was unprecedented in the past, and will probably remain without a counterpart in the future.
    Alexandre Dumas  --  The Count of Monte Cristo
  • Men of science and religion are not unprecedented in history.
    Dan Brown  --  Angels & Demons
  • An unprecedented liberal, His Holiness had secured the papacy through one of the most controversial and unusual conclaves in Vatican history.
    Dan Brown  --  The Da Vinci Code
  • Renesmee grows at an unprecedented rate.
    Stephenie Meyer  --  Breaking Dawn
  • The circumstance of Ron having read a book that Hermione had not was unprecedented.
    J.K. Rowling  --  Harry Potter and the Deathly Hallows
  • Taggart turned, startled by the unprecedented phenomenon of an implacable anger in Eddie’s voice.
    Ayn Rand  --  Atlas Shrugged
  • And, finally, we have the unprecedented problems of caring for a population of animals that no one has ever tried to maintain before.
    Michael Crichton  --  Jurassic Park
  • She felt in her pocket for her soma–only to discover that, by some unprecedented oversight, she had left the bottle down at the rest-house.
    Aldous Huxley  --  Brave New World
  • Scarlett stared at her, alarmed by so unprecedented an outburst.
    Margaret Mitchell  --  Gone with the Wind
  • Here stood the old Hudson’s Bay Company fort; and here were many Indians, much food, and unprecedented excitement.
    Jack London  --  White Fang
  • Dr Sasaki and his colleagues at the Red Cross Hospital watched the unprecedented disease unfold and at last evolved a theory about its nature.
    John Hersey  --  Hiroshima
  • Hastings House had ordered an unprecedented first printing of a million copies.
    Stephen King  --  Misery
  • On all such occasions, Mr. Grimwig plants, fishes, and carpenters, with great ardour; doing everything in a very singular and unprecedented manner, but always maintaining with his favourite asseveration, that his mode is the right one.
    Charles Dickens  --  Oliver Twist
  • But the real discovery was that our two stories together helped me to untangle some of the larger story of our generation of young men, boys who came of age during a historically chaotic and violent time and emerged to succeed and fail in unprecedented ways.
    Wes Moore  --  The Other Wes Moore
  • The whole city is thrilling to-night with a realization of the extraordinary significance of these two unprecedented events.
    Booker T. Washington  --  Up From Slavery: An Autobiography
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Associated words [difficulty]:   unprecedented [2]
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