Conscientious

//ˌkɑnʃiˈɛnʃəs// adj

Definitions

Adjective
  1. 1
    Thorough, careful, or vigilant in one’s task performance; painstaking.

    "He was a thoughtful and conscientious worker."

  2. 2
    Influenced by conscience; principled; governed by a strict regard to the dictates of conscience, or by the known or supposed rules of right and wrong (said of a person).

    "The advice of wise and conscientious people."

Adjective
  1. 1
    characterized by extreme care and great effort wordnet
  2. 2
    guided by or in accordance with conscience or sense of right and wrong wordnet

Etymology

From Middle French conscientieux, from Medieval Latin cōnscientiōsus. Its English equivalent could possibly be analyzed as conscient + -ous. See more at conscience.

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