conscientious
- 1Careful, thorough, and watchful in doing one's work or duties, taking pains to get every part right.
A conscientious editor caught dozens of small errors in the manuscript.
The night nurses were conscientious, double-checking every dose before giving it.
Similardiligent, meticulous, thorough, careful, painstaking
- 2Of a person, governed by conscience and keeping strictly to what they believe is morally right.
During the war he registered as a conscientious objector and worked in a hospital instead of fighting.
She was too conscientious to keep the extra change the cashier had handed her by mistake.
Similarprincipled, scrupulous, honest
Oppositeunscrupulous, unprincipled
Practice
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Origin
From Middle French conscientieux, from Medieval Latin cōnscientiōsus; in English it could possibly be analysed as conscient + -ous. It is related to conscience.