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Definition of diligent:

  1. Interestedly and perseveringly attentive; steady and earnest in application to a subject or pursuit; assiduous; industrious.
  2. Prosecuted with careful attention and effort; careful; painstaking; not careless or negligent.


purposeful, prompt, employed, sedulous, hardworking, industrious, tied-up, energetic, hopping, unremitting, wide awake, keen, quick, engaged, painstaking, systematic, expeditious, exact, studious, untiring, restless, tireless, busy, studious, lively, laborious, occupied, pertinacious, vigorous, bustling, working, hard-working, involved, persevering, patient, sprightly, supple, spry, active, officious, agile, mobile, assiduous, organized, brisk, nimble.

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