What does conscientious mean?

The term "conscientious" is used to describe someone who is diligent, responsible, and attentive to detail in their work or duties. When a person is characterized by extreme care and effort, it implies that they take their obligations seriously and strive to do their best. This diligence often involves being thorough, careful, and meticulous, ensuring that their tasks are completed to a high standard. This aligns with the meaning of the word "conscientious," reflecting a strong sense of responsibility and ethics in one's actions.

In contrast, the other options present meanings that do not align with the essence of being conscientious. Carelessness and indifference suggest a lack of attention and concern, triviality implies something of little significance, and superficiality denotes a lack of depth or thoroughness. None of these definitions capture the careful and responsible nature that "conscientious" embodies.