Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Guided by or in accordance with the dictates of conscience; principled: a conscientious decision to speak out about injustice.
  • adj. Thorough and assiduous: a conscientious worker; a conscientious effort to comply with the regulations.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Thorough, careful, or vigilant; implies a desire to do a task well.

from the GNU version of the Collaborative International Dictionary of English

  • adj. 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.
  • adj. Characterized by a regard to conscience; conformed to the dictates of conscience; -- said of actions.

from The Century Dictionary and Cyclopedia

  • Conscious.
  • 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.
  • Regulated by conscience; according to the dictates of conscience; springing from conscience: as, a conscientious scruple.
  • Synonyms and Scrupulous, exact, careful, faithful, upright, honest, honorable, righteous.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. guided by or in accordance with conscience or sense of right and wrong
  • adj. characterized by extreme care and great effort

Etymologies

Obsolete French conscientieux, from Medieval Latin cōnscientiōsus, from Latin cōnscientia, conscience; see conscience.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

  • In fact, the origin of the term 'conscientious objector' comes from refusing vaccine - not from war.

    Yahoo! News: Business - Opinion

  • But economists and culture vultures seem to be waking up to the possibility that era of conspicuous consumption may be giving way to a new period of what I call conscientious consumption.

    Rare-auto breeds

  • The only policy which would allow you to do without armament is the policy which England will always respect as on opinion-I mean non-resistance -- (and I remind you that it was respected throughout the last war as an individual opinion, of what we called the conscientious objector,) but it will never be followed as a policy.

    Europe 1937 Prospect and Retrospect

  • Even liars have to admit that, if they are intelligent liars; I mean in their private [the word conscientious written but erased] intervals.

    Mark Twain's Letters — Volume 4 (1886-1900)

  • Now, when a nature intensely conscientious is constantly oppressed by a sense of unperformed duty, that sense becomes a gnawing worm at the very root of life.

    Oldtown Folks

  • True, she said many sharp and bitter things; but nobody but herself and her God knew how many more she would have said had she not reined herself up in conscientious silence.

    Oldtown Folks

  • All the candidates were described as conscientious, smart, and insightful, and all the descriptions ended with notes, such as "Observation: seems to be candid and trusting," or, "Observation: his/her natural competitiveness was apparent."

    The Globe and Mail - Home RSS feed

  • I think it’s important we have protestors and armchair generals who engage in conscientious or useful critique of (a) war, chiefly because lives and way of life are at stake bothsides.

    The Volokh Conspiracy » The Changing Conflict in Pakistan, and Targeted Killing

  • Lembit Öpik is well known as a conscientious and hard working MP.

    Mind on other matters?

  • The courts had previously rejected the request of Specialist Agustin Aguayo to be classified as a conscientious objector, so he fled to his home rather than be redeployed.

    Archive 2007-03-01

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