: characterized by steady, earnest, and energetic effort : painstaking
After many hours of diligent research, the students were finally ready to compile their results.
"The mature members of the workforce are hard-working, diligent, responsible people." -- From an article by Casey Dowd at foxbusiness.com, November 10, 2011
Did You Know?
You're more likely to be diligent about something if you love doing it. The etymology of "diligent" reflects the fact that affection can lead to energetic effort. The word, which entered English in the 14th century by way of Anglo-French, descends from the Latin verb "diligere," meaning "to value or esteem highly" or "to love." Of course, you don’t need to care for the task at hand in order to be diligent, but it certainly does help!
Word Family Quiz
What relative of "diligent" begins with "p" and means "an established preference for something"? The answer is ...