[ kon-shee-en-shuhs, kon-see- ]
/ ˌkɒn ʃiˈɛn ʃəs, ˌkɒn si- /
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See synonyms for: conscientious / conscientiously / conscientiousness on Thesaurus.com


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.
careful and painstaking; particular; meticulous; scrupulous: conscientious application to the work at hand.



Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

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Origin of conscientious

First recorded in 1605–15; from Medieval Latin conscientiōsus, equivalent to Latin conscienti(a)conscience + -ōsus-ous

synonym study for conscientious

2. See painstaking.

OTHER WORDS FROM conscientious

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for conscientious

British Dictionary definitions for conscientious

/ (ˌkɒnʃɪˈɛnʃəs) /


involving or taking great care; painstaking; diligent
governed by or done according to conscience

Derived forms of conscientious

conscientiously, 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