con·sci·en·tious 
/ˌkɑn:ʃiˈɛntʃəs/ adjective
/ˌkɑn:ʃiˈɛntʃəs/ adjective [more conscientious; most conscientious] : very careful about doing what you are supposed to do : concerned with doing something correctly
▪ She has always been a very conscientious worker. ▪ He was conscientious about following the doctor's orders.
▪ She has always been a very conscientious worker. ▪ He was conscientious about following the doctor's orders.
— con·sci·en·tious·ly adverb
▪ He followed his doctor's orders conscientiously.
▪ He followed his doctor's orders conscientiously.
— con·sci·en·tious·ness noun [noncount]
