conscientious
conscientious
[adjective
/ˌkɒnʃiˈenʃəs/
​taking care to do things carefully and correctly
a conscientious student/teacher/worker
He was thorough and conscientious, rather than brilliant.
She was a popular and conscientious teacher.
TOPICS Personal qualities C1
Word Origin
early 17th cent.: from French consciencieux, from medieval Latin conscientiosus, from Latin conscientia, from conscient- ‘being privy to’, from the verb conscire, from con- ‘with’ + scire ‘know’.