diligent
Showing careful and persistent effort in work or duties.
Examples
In a meeting
“She's been diligent about documenting every process change.”
Over coffee
“He's diligent about sunscreen — never leaves the house without it.”
Why this word
hardworking
diligent emphasizes careful, persistent attention to detail, while hardworking only indicates effort level
careful
diligent combines carefulness with sustained effort over time, while careful only addresses attention to detail
thorough
diligent implies ongoing conscientiousness and effort, while thorough describes completeness in execution
Usage tip
Always a compliment. Implies steady, reliable effort rather than bursts of genius. 'Due diligence' is the noun form common in business.
Etymology
Latin diligens — dis (apart) + legere (to choose), literally 'choosing carefully'
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Related words
validate
To confirm that something is correct, sound, or meets requirements.
robust
Strong, sturdy, and able to withstand tough conditions; thorough and effective.
optimal
The best or most favorable under particular conditions
exemplary
Serving as an outstanding model or example; extremely good
thorough
Complete with attention to every detail
meticulous
Showing great attention to detail; very careful