Conscientious adjective
Taking care to do things carefully and correctly: a conscientious student / teacher
i.e.: He was thorough and conscientious, rather than brilliant.
Conscientiously adverb: She performed all her duties conscientiously.
Conscientiousness noun [U]
[@more@]1 <人、行为>有良心的,诚实的
b. [对…]谨慎的,慎重的[about],Be more ~ about your work.