• WordNet 3.6
    • adj conscientious characterized by extreme care and great effort "conscientious application to the work at hand","painstaking research","scrupulous attention to details"
    • adj conscientious guided by or in accordance with conscience or sense of right and wrong "a conscientious decision to speak out about injustice"
    • ***
Webster's Revised Unabridged Dictionary
    • Conscientious Characterized by a regard to conscience; conformed to the dictates of conscience; -- said of actions. "A holy and conscientious course."
    • Conscientious Influenced by conscience; governed by a strict regard to the dictates of conscience, or by the known or supposed rules of right and wrong; -- said of a person. "The advice of wise and conscientious men."
    • ***
Century Dictionary and Cyclopedia
    • conscientious Conscious.
    • conscientious Controlled by conscience; governed by a strict regard to the dictates of conscience, or by the known or supposed rules of right and wrong: as, a conscientious judgė.
    • conscientious Regulated by conscience; according to the dictates of conscience; springing from conscience: as, a conscientious scruple.
    • conscientious Synonyms and Scrupulous, exact, careful, faithful, upright, honest, honorable, righteous.
    • ***
Chambers's Twentieth Century Dictionary
    • Conscientious regulated by a regard to conscience: scrupulous
    • ***


  • Johann Kaspar Lavater
    “He who has no taste for order, will be often wrong in his judgment, and seldom considerate or conscientious in his actions.”
  • Mark Twain
    “A soiled baby, with a neglected nose, cannot be conscientiously regarded as a thing of beauty.”
  • Johann Kaspar Lavater
    “Depend on no man, on no friend but him who can depend on himself. He only who acts conscientiously toward himself, will act so toward others.”
  • Sarah Ellis
    Sarah Ellis
    “To act the part of a true friend requires more conscientious feeling than to fill with credit and complacency any other station or capacity in social life.”
  • King Jr. Martin Luther
    “Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.”
  • James Russell Lowell
    “Good luck is the willing handmaid of a upright and energetic character, and conscientious observance of duty.”


Webster's Revised Unabridged Dictionary
Cf. F. consciencieux, LL. conscientiosus,
Chambers's Twentieth Century Dictionary
Fr.,—L. conscientia, knowledge—conscīre, to know well—con, and scīre, to know.


In literature:

It was too clear that the stone must have carried out his thoughtless wish with scrupulous and conscientious exactness in every detail.
"Vice Versa" by F. Anstey
Regarding the conscientiousness of their motives, opinions were divided.
"Marjorie Dean" by Pauline Lester
Beth despised her for her conscientious treachery, and retaliated by tempting her afresh.
"The Beth Book" by Sarah Grand
Him a conscientious constable floored with a truncheon.
"The Big Bow Mystery" by I. Zangwill
That was conscientious cheating, so I made no complaint.
"The Land of Thor" by J. Ross Browne
The promise which she had given to the Earl she had tried to fulfill most conscientiously.
"The Cryptogram" by James De Mille
Some men are conscientious toward Sunday, but not toward the week days.
"A Man's Value to Society" by Newell Dwight Hillis
Her theory is that he's a subject of some belligerent country, who has conscientious scruples against fighting.
"The Lightning Conductor Discovers America" by C. N. (Charles Norris) Williamson and A. M. (Alice Muriel) Williamson
King Edward was a very thoughtful, considerate, and conscientious boy, and was very desirous of doing what he considered his duty.
"Queen Elizabeth" by Jacob Abbott
Our home papers are almost uniformly staid; they are written conscientiously, laboriously, commendably.
"Literary Tours in The Highlands and Islands of Scotland" by Daniel Turner Holmes

In poetry:

BE this as 'twill, the conscientious Anne
Would nothing venture to regale her man;
Howe'er, she stated what had raised her fear,
And ev'ry thing that made her persevere.
"The Case Of Conscience" by Jean de La Fontaine
Being a writer I receive
Sweet screeds from folk of every land;
Some are so weird you'd scarce believe,
And some quite hard to understand:
But as a conscientious man
I type my thanks to all I can.
"My Favourite Fan" by Robert W Service
Whatever your job is, do it well and
conscientiously. Whatever your task
is-do it gladly, gaily, thoroughly. Do not grumble if you have to do an extra bit. Do
whatever comes to hand and take a pride in it.
"The Way You Think" by Patience Strong

In news:

So what is a conscientious Muslim to do.
Luckily, Adam Weinstein is more conscientious than me, and he reports that the FCC's new rules go into effect at midnight tonight.
Chipotle 's challenge: Conscientious chain still struggles in the land of 1,000 carnitas.
Veteran advocacy groups that want to end the war in Afghanistan are conducting an outreach campaign near Joint Base Lewis-McChord this week to connect soldiers with information about how to become conscientious objectors.
We also made this film to honor those who are willing to serve our country in the armed forces — all of them, including both conscientious objectors and sincere war-fighters.
Learn more about the history of conscientious objection in the US armed forces and the impact of war on soldiers.
History of Conscientious Objection in the United States.
'Conscientious consumption ' survives recession.
Much of the demand for conscientious consumption comes from young consumers who almost universally had a service requirement to graduate high school and who grew up in a world of ubiquitous causes.
As a Davis parent and educator, I know the difference that one dedicated, passionate, conscientious and highly skilled individual can make.
You want to be conscientious about the disposal , so what should you do.
I have too much respect for learning and for the work involved in being a college student to reinforce a lack of conscientiousness.
On the eleventh of the eleventh, More4 will be marking remembrance Sunday by airing some of Channel 4's best programming about World War One including Fighting The Red Baron and Ian Hislop's Conscientious Objectors.
Only in America could the so-called "Twinkie Defense" merge with the conscientious objector argument to address the unique issues of the 21st century.
Such measured responses tell me that conscientious admissions deans are not about to turn themselves into online detectives.

In science:

Bottom line is that, in my opinion, authors and reviewers that are already doing great and conscientious work would probably not see any difference when switching to the suggested system, since their self-imposed requirements are strong enough.
Rapid, Impartial and Comprehensive (RIC) publishing: A new concept for scientific journals