conscientious

Reading level: hard

Estimated CEFR level: C1 — Advanced

Estimated from word frequency; not an official CEFR classification.

Definition

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

Etymology

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

In classic literature

Synonyms

painstaking, scrupulous

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