conscientious

/ˌkɑnʃiˈɛnʃəs/
adjective
  1. Taking care to do things carefully and correctly; showing a sense of duty.
    • She is a conscientious student who always double-checks her homework before submitting it.
    • Being conscientious about saving energy helps reduce your electricity bill and protects the environment.
    • The conscientious nurse made sure every patient received their medication on time.
  2. Guided by a strong sense of right and wrong; scrupulous.
    • Many conscientious citizens volunteer to help their communities without expecting anything in return.
    • He refused to lie even when it would have been easier, because he is a conscientious person.
    • The judge was known for being conscientious in applying the law fairly to everyone.