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1. Guided by or in accordance with the dictates of conscience; principled: a conscientious decision to speak out about injustice.
2. Thorough and assiduous: a conscientious worker; a conscientious effort to comply with the regulations. See Synonyms at diligent.

[Obsolete French conscientieux, from Medieval Latin cōnscientiōsus, from Latin cōnscientia, conscience; see conscience.]

con′sci·en′tious·ly adv.
con′sci·en′tious·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.conscientiousness - the quality of being in accord with the dictates of conscience
conscience - conformity to one's own sense of right conduct; "a person of unflagging conscience"
religiousness - the quality of being extremely conscientious; "his care in observing the rules of good health amounted to a kind of religiousness"
unconscientiousness - the quality of being willing to ignore the dictates of conscience
2.conscientiousness - the trait of being painstaking and careful
carefulness - the quality of being careful and painstaking; "I admired the carefulness of his work"
meticulosity, meticulousness, punctiliousness, scrupulousness - strict attention to minute details
thoroughness - conscientiousness in performing all aspects of a task
diligence - conscientiousness in paying proper attention to a task; giving the degree of care required in a given situation
strictness, stringency - conscientious attention to rules and details
unconscientiousness - the trait of not being painstaking or careful
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
وَعْي الضَّمير ، القِيام بالواجِب تَماما


[ˌkɒnʃɪˈenʃəsnɪs] Ndiligencia f, escrupulosidad f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


nGewissenhaftigkeit f; (= sense of duty)Pflichtbewusstsein nt, → Pflichtgefühl nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


[ˌkɒnʃɪˈɛnʃəsnɪs] ncoscienziosità
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995


(konʃiˈenʃəs) adjective
careful and hard-working. a conscientious pupil.
ˌconsciˈentiously adverb
ˌconsciˈentiousness noun
ˌconscientious obˈjector noun
a person who refuses to serve in the armed forces for moral or religious reasons.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
for me to learn to believe in your "conscientiousness," ye would first have to break your venerating will.
In spite of the scrupulous conscientiousness with which Sergey Ivanovitch verified the correctness of the critic's arguments, he did not for a minute stop to ponder over the faults and mistakes which were ridiculed; but unconsciously he began immediately trying to recall every detail of his meeting and conversation with the author of the article.
"The Lord never made either year face or head for X What good can your bumps of ideality, comparison, self-esteem, conscientiousness, do you here?
This afternoon, instead of dreaming of Deepden, I was wondering how a man who wished to do right could act so unjustly and unwisely as Charles the First sometimes did; and I thought what a pity it was that, with his integrity and conscientiousness, he could see no farther than the prerogatives of the crown.
D'Artagnan did reflect, and resolved to thrash Planchet provisionally; which he did with the conscientiousness that D'Artagnan carried into everything.
But then there is also a large class of minds which cannot be sure it is false--minds of very various degrees of conscientiousness and intellectual power, up to the highest.
Goodfellow's sensitive conscientiousness forbade him to withhold from the court) was considered so unbroken and so thoroughly conclusive, that the jury, without leaving their seats, returned an immediate verdict of "Guilty of murder in the first degree." Soon afterward the unhappy wretch received sentence of death, and was remanded to the county jail to await the inexorable vengeance of the law.
The way was partly prepared for Gibbon by two Scottish historians, his early contemporaries, the philosopher David Hume and the clergyman William Robertson, but they have little of his scientific conscientiousness.
In her moral character, it is beautiful to behold her continual gladness, her keen enjoyment of existence, her expansive love, her unhesitating confidence, her sympathy with suffering, her conscientiousness, truthfulness, and hopefulness.'
Poulter felt that he had acted with scrupulous conscientiousness, and said, "Well, now, Master Tulliver, if I take the crown-piece, it is to make sure as you'll do no mischief with the sword."
Consequently, they are more likely than individuals low in conscientiousness to develop competencies away from work that can be carried to work.
As regards personality domains, the zero-order Pearson correlations showed significant positive correlation between conscientiousness and academic performance (r=0.413, p<0.01) whereas Neuroticism and GPA exhibited a negative correlation (r=-0.278, p<0.01).