• synonyms


[kon-shee-en-shuh s, kon-see-]
See more synonyms for conscientious on Thesaurus.com
  1. governed by conscience; controlled by or done according to one's inner sense of what is right; principled: She's a conscientious judge, who does not let personal prejudices influence her decisions.
  2. careful and painstaking; particular; meticulous; scrupulous: conscientious application to the work at hand.
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Origin of conscientious

1605–15; < Medieval Latin conscientiōsus, equivalent to Latin conscienti(a) conscience + -ōsus -ous
Related formscon·sci·en·tious·ly, adverbcon·sci·en·tious·ness, nounhy·per·con·sci·en·tious, adjectivehy·per·con·sci·en·tious·ly, adverbhy·per·con·sci·en·tious·ness, nouno·ver·con·sci·en·tious, adjectiveo·ver·con·sci·en·tious·ly, adverbun·con·sci·en·tious, adjectiveun·con·sci·en·tious·ly, adverbun·con·sci·en·tious·ness, noun


See more synonyms for conscientious on Thesaurus.com
1. just, upright, honest, faithful, devoted, dedicated. 2. See painstaking.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for over-conscientious

Historical Examples

  • The over-conscientious parent will disgust one child and make a fanatic of another.

    Self Knowledge and Guide to Sex Instruction

    T. W. Shannon

  • The over-conscientious individual may object that it is selfish to consider his own comfort when he has work to do for others.

    Why Worry?

    George Lincoln Walton, M.D.

  • Hers was one of those involved and over-conscientious characters, keenly sensitive to the thought of duty and to others, pain.

    The Crux

    Charlotte Perkins Gilman

  • There is a word of warning which should here be spoken to the over-conscientious student.

  • But the obstinacy of an over-conscientious person who has a duty to perform is appalling.

    A Lady of Rome

    F. Marion Crawford

British Dictionary definitions for over-conscientious


  1. involving or taking great care; painstaking; diligent
  2. governed by or done according to conscience
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Derived Formsconscientiously, adverbconscientiousness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for over-conscientious



1610s, from Middle French conscientieux (16c.; Modern French consciencieux), from Medieval Latin conscientiosus, from conscientia (see conscience). Related: Conscientiously; conscientiousness.

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Online Etymology Dictionary, © 2010 Douglas Harper