diligent
adjective C1
Plain meaning
hard-working and careful
Exam-register meaning
In academic or exam writing, this is used to discuss hard-working and careful in a more precise way.
In context
naturalThe report described diligent student in a clear and practical way.
examThe findings show that diligent student can influence educational, social, or economic outcomes.
Common collocations
diligent studentdiligent workerdiligent effort
Watch out
Do not overuse it as a direct replacement for “good/bad”. Use it with natural nouns such as “diligent student”.