Simple Definition of conscientious
: very careful about doing what you are supposed to do : concerned with doing something correctly
Examples of conscientious in a sentence
He was a good friend to his comrades, a conscientious leader mindful of his men's needs; an upright family man with strong, bright, proud children … —Tom Clancy, Without Remorse, 1994
Because Puckett was a conscientious lieutenant … his men did not have to stint on their fire. He had made sure that every man was carrying a basic load of ammunition and then some to spare … —Neil Sheehan, A Bright Shining Lie, 1988
He was shifty about money matters, not conscientious about returning advances, fulfilling contracts, reading manuscripts. —Monroe K. Spears, American Ambitions, 1987
She has always been a very conscientious worker.
He was conscientious about following the doctor's orders.
Did You Know?
According to American writer and editor H.L. Mencken, "Conscience is the inner voice which warns us someone may be looking." A person who is conscientious makes sure that if others are watching, they like what they see. "Conscience" and "conscientious" both come from the Latin verb conscire, a word that means "to be conscious" or "to be conscious of guilt" and that traces back to a still older Latin word, scire, meaning "to know."
Origin and Etymology of conscientious
First Known Use: 1576
Synonym Discussion of conscientious
CONSCIENTIOUS Defined for Kids
Definition of conscientious for Students
1 : guided by or agreeing with a sense of doing what is right <No conscientious person would stand for such unfair actions.>
2 : using or done with care <conscientious teachers> <conscientious efforts>
Seen and Heard
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