• WordNet 3.6
    • adj assiduous marked by care and persistent effort "her assiduous attempts to learn French","assiduous research","sedulous pursuit of legal and moral principles"
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Webster's Revised Unabridged Dictionary
    • Assiduous Constant in application or attention; devoted; attentive; unremitting. "She grows more assiduous in her attendance."
    • Assiduous Performed with constant diligence or attention; unremitting; persistent; as, assiduous labor. "To weary him with my assiduous cries."
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Century Dictionary and Cyclopedia
    • assiduous Constant in application; attentive; devoted: as, a person assiduous in his occupation; an assiduous physician or nurse.
    • assiduous Constant; unremitting: applied to actions.
    • assiduous Synonyms Sedulous, diligent, active, busy, constant, patient, persevering, laborious, unceasing, indefatigable, untiring. See assiduity.
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Chambers's Twentieth Century Dictionary
    • adj Assiduous constant or unwearied in application: diligent
    • ***


  • Eugenio Montale
    Eugenio Montale
    “Man cannot produce a single work without the assistance of the slow, assiduous, corrosive worm of thought.”


Webster's Revised Unabridged Dictionary
L. assiduus, fr. assidre, to sit near or close; ad, + sedēre, to sit. See Sit
Chambers's Twentieth Century Dictionary
L. assiduitasassiduus, sitting close at—ad, to, at, sedēre, to sit.


In literature:

But no; the blue spectacles would be the more assiduous guardian, said my foolish fancy.
"Lady Hester, or Ursula's Narrative" by Charlotte M. Yonge
If time permitted, he would with assiduity visit the synagogue of Fridays.
"Yama (The Pit)" by Alexandra Kuprin
I must say, Charles paid them most assiduous attention.
"An African Millionaire" by Grant Allen
He had really some touch of genius, and he cultivated it assiduously.
"At the Villa Rose" by A. E. W. Mason
Madame de Guilleroy, whose continual fears were soothed by this assiduity, made fresh efforts to attract him and to keep him near her.
"Strong as Death" by Guy de Maupassant
The theatre was, as usual, assiduously frequented by Chopin.
"Frederick Chopin as a Man and Musician" by Frederick Niecks
Romance evidently denied her magic presence to one who wooed her assiduously by his pen.
"Number Seventeen" by Louis Tracy
Yet he was called well, waited assiduously on little Lina, and talked with animation.
"Magnum Bonum" by Charlotte M. Yonge
From the first he had assiduously cultivated his acquaintance with the new owners of the Barony.
"The Prodigal Judge" by Vaughan Kester
This bustling little man, who had everything to gain from the return of his legitimate sovereigns, worked assiduously for their cause.
"The Fortune of the Rougons" by Emile Zola

In poetry:

I grant you, Melesinda, when
Your instrument was new,
I was well pleased to see you then
Its charms assiduous woo.
"To A Young Lady, On Being Too Fond Of Music" by Charles Lamb
But cove, nor love's assiduous care
Could ebbing life's warm tide restore!--
Pale, wet, and speechless lay the fair
On Kilda's bleak and stormy shore.
"The Harp. A Legendary Tale. In Two Parts" by Hector MacNeill
O loved Simplicity! be thine the prize!
Assiduous Art correct her page in vain!
His be the palm, who, guiltless of disguise,
Contemns the power the dull resource to feign!
"Elegy I. He Arrives at His Retirement in the Country" by William Shenstone
Soft o'er his birth, and o'er his infant hours,
The ambitious maid could every care employ;
Then with assiduous fondness cropt the flowers,
To deck the cradle of the princely boy.
"Elegy XXIII. Reflections Suggested" by William Shenstone

In news:

There will be a final swing through battleground states on Monday, but the machinery his campaign assiduously put in place over two years is now on remote control.
Sasha Issenberg, in his new book The Sushi Economy, implies that to eat raw fish on rice is to become an assiduous participant in 21st-century global capitalism.
It was the assiduous work of Jeremy Duns, another writer, that laid out a case demonstrating that prize-winning mystery writer R.J. Ellory had been writing the "sock puppet" reviews on Amazon.
Though the Uzbek government can be capricious in its censorship, the Uzbek Wikipedia is assiduously unprovocative - indeed, Uzbeks writing about national hero Navoi is exactly the sort of thing that the state encourages.
Gandhi has assiduously courted the favor of the influential and powerful.
But why did he have to seek death so assiduously.
Here's the Post's Joel Greenberg reporting from Jerusalem on Israel's minor but startling volley in a conflict it has seemed to assiduously avoid entering.
Assiduously pursuing that policy, it now appears it is time for those of us in the baby boomer generation to have the good sense to lie down and bite the dust.
In the past few years, Wizards of the Coast has been assiduously releasing board games based off their D&D franchise — check out Michael Harrison's review of Lords of Waterdeep.

In science:

Assiduous readers are encouraged to look at and to see the close parallels.
Phenomenological loop quantum geometry of the Schwarzschild black hole
Assiduously tracking down all the constants in the above argument shows that the mixing time was bounded above by 225n log n or so.
A Coupling Argument for the Random Transposition Walk
It is a pleasure to thank the Fondation des Sciences Mathématiques de Paris for its generous support during the academic year 2011-12 and for giving me the opportunity to speak about my recent research in the prestigious Collège de France. I am grateful to all the participants of these lectures for their assiduity.
Lectures on Gaussian approximations with Malliavin calculus
After thirty years hard work, radio astronomers have assiduously built up a picture of relativistic jets and tentatively pushed up the Lorentz factors to 15.
Probing the Physics of AGN: A Summary
Such nonphysical models should be assiduously avoided, or at least they must include suggestions on how to measure/validate values of their most crucial external parameters.
The Workshop on Internet Topology (WIT) Report