Words similar to diligent

Example sentences for: diligent

How can you use “diligent” in a sentence? Here are some example sentences to help you improve your vocabulary:

Observers said the Y2K bug's threat 1) was averted thanks to diligent preparation; 2) had been exaggerated by greedy programmers so that customers would commission expensive repairs; and 3) won't pass until companies and governments have used their "backroom systems," which were not repaired as thoroughly as critical programs.
This may be part of his problem -- the country seems to respond better to risk-taking entrepreneurs than diligent, calculating types like Lamar.
After a diligent search, I could find no earlier mention.
More than 100,000 messages have been posted to the group during the last two years, all of which can be viewed at this archive, maintained by some diligent soul at Dartmouth College.