The Open Dictionary

diligent

adjective

UK/ˈdɪl.ɪ.dʒᵊnt/
US/ˈdɪl.ə.dʒᵊnt/

Definitions of diligent adjective

  1. approving

    Characterized by steady and earnest effort; assiduous.

    • A diligent student who consistently completes all assignments on time.

    • She is extremely diligent in her work and always strives for excellence.

    • They invested a lot of diligent effort into their research project.

  2. Marked by or showing care and conscientiousness in one's work; thorough and painstaking.

    • This discovery is the result of many years of diligent research and analysis.

    • This report requires diligent review and editing.

    • She is very diligent in handling every detail of the project.