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Definition careful to do what is right—especially to perform duties in a thorough manner (as when guided by conscience)
  • She is conscientious in the lab.
conscientious = careful and thorough
  • I try to hire employees who are conscientious.
  • conscientious = careful to do what is right
  • Gatsby got himself into a shadow and, while Daisy and I talked, looked conscientiously from one to the other of us with tense, unhappy eyes.
    F. Scott Fitzgerald  --  The Great Gatsby
  • conscientiously = with a desire to do what was right
  • I cannot keep count of them, though I have tried conscientiously.
    Charlotte Perkins Gilman  --  The Yellow Wallpaper
  • conscientiously = with care
  • Slowly and conscientiously he ate all of the wedge-shaped strips of fish.
    Ernest Hemingway  --  The Old Man and the Sea
  • conscientiously = with care
  • Some of the faculty are pretty conscientious.
    J.D. Salinger  --  The Catcher in the Rye
  • conscientious = characterized by extreme care and great effort
  • I took dinner usually at the Yale Club — for some reason it was the gloomiest event of my day — and then I went up-stairs to the library and studied investments and securities for a conscientious hour.
    F. Scott Fitzgerald  --  The Great Gatsby
  • conscientious = careful performance of duties
  • The other girl, Daisy, made an attempt to rise — she leaned slightly forward with a conscientious expression — then she laughed, an absurd, charming little laugh, and I laughed too and came forward into the room.
    F. Scott Fitzgerald  --  The Great Gatsby
  • conscientious = wanting to be proper
  • And Clyde, feeling how strange it was that the Reverend McMillan could not conscientiously bring himself to do more than that for him.
    Theodore Dreiser  --  An American Tragedy
  • That he was a good man" An honest, conscientious man?
    Nicholas Sparks  --  The Longest Ride
  • Conscientiously, Iona sprinkled flour over the next layer of sliced potatoes.
    Nora Roberts  --  Dark Witch
  • She seemed like such a conscientious sort....
    Margaret Peterson Haddix  --  Uprising
  • It broke her heart to see her mother trying so hard, being so conscientious, so determined to be valuable.
    Amy Tan  --  The Bonesetter's Daughter
  • The prosecutor was Jim Rowland from third battalion, an extraordinarily bright and conscientious cadet who had been accepted at Harvard Law School.
    Pat Conroy  --  The Lords of Discipline
  • You're so conscientious,' he said, his voice muffled by my sweater, which he was still trying to ease off.
    Sarah Dessen  --  Lock and Key
  • It wasn't his fault that an accident now made the deal possible and not his own conscientious efforts.
    Robert Penn Warren  --  All the King's Men
  • He wrote conscientiously each item of his distinctions; his name found its way back more than once to the indulgent Altamont papers.
    Thomas Wolfe  --  Look Homeward, Angel
  • I am not sure that as a conscientious detective my first duty is not to arrest the whole household.
    Arthur Conan Doyle  --  The Hound of the Baskervilles
  • My conscientious objection to most homework had put my grades in the toilet, but the only class I had outright flunked was precalc.
    Laurie Halse Anderson  --  The Impossible Knife of Memory
  • "That's very conscientious of you."
    Nicholas Sparks  --  Safe Haven

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