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The meaning of CONSCIENTIOUS is exercising attentive care to avoid errors or omissions : concerned with doing something correctly : meticulous, careful. How to use conscientious in a sentence.
For conscientious members of a community, they provide at least additional reasons for conformity to the law.
CONSCIENTIOUS definition: governed by conscience; controlled by or done according to one's inner sense of what is right; principled. See examples of conscientious used in a sentence.
Definition of conscientious adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
1. meticulous; careful; painstaking. 2. governed by or done according to conscience; scrupulous: a conscientious judge.
Adjective conscientious (comparative more conscientious, superlative most conscientious) Thorough, careful, or vigilant in one’s task performance; painstaking.
What does the adjective conscientious mean? There are four meanings listed in OED's entry for the adjective conscientious, one of which is labelled obsolete, and one of which is considered derogatory.
WordReference Random House Unabridged Dictionary of American English © 2026 con•sci•en•tious (kon′shē en′ shəs, kon′sē-), adj. controlled by or done according to conscience; scrupulous: a conscientious judge. meticulous; careful; painstaking; particular: conscientious application to the work at hand.
Thorough, careful, or vigilant; implies a desire to do a task well. He was a thoughtful and conscientious worker.
A conscientious person is known for paying close attention to detail and for being reliable and dependable. They are also known for being honest and ethical in their actions.