adjective
diligent
DIL-uh-juhnt/ˈdɪlɪdʒənt/
Showing steady effort and care in one's work.
The diligent man carefully repairs the fishing net, working steadily through its remaining holes.

Etymology
The pieces combine in the original idea of “picking out,” which developed into valuing or esteeming something highly. That sense led to attentiveness and care, the qualities expressed by diligent effort.
In context
luckily there is a diligent helper it produces the best fertilizer in the world digs tirelessly and aerates the soil a good worm the earthworm hardly any animal is as popular with other guests of the garden as the earthworm
More examples
- He is diligent about checking every invoice for errors.
- Their diligent research helps the team avoid costly mistakes.
- We need to be more diligent in keeping accurate records.
Forms
diligent · more diligent · most diligent
diligence noun — Steady effort and care in working.
diligently adverb — With steady effort and careful attention.
Similar words
- conscientious
- Emphasizes responsibility and a desire to do work correctly.
- hardworking
- Emphasizes sustained effort more than care or attention to detail.
- thorough
- Emphasizes completeness and detail rather than steady effort over time.