conscientious

[kon-shee-en-shuhs, kon-see-]
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adjective
  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.

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

Synonyms for conscientious

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for conscientiously

conscientious

adjective
  1. involving or taking great care; painstaking; diligent
  2. governed by or done according to conscience
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 conscientiously

conscientious

adj.

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

Online Etymology Dictionary, © 2010 Douglas Harper