Synonyms & Antonyms of diligent

See the Dictionary Definition 

Frequently Asked Questions About diligent

How is the word diligent different from other adjectives like it?

Some common synonyms of diligent are assiduous, busy, industrious, and sedulous. While all these words mean "actively engaged or occupied," diligent suggests earnest application to some specific object or pursuit.

very diligent in her pursuit of a degree

When might assiduous be a better fit than diligent?

The meanings of assiduous and diligent largely overlap; however, assiduous stresses careful and unremitting application.

assiduous practice

When is it sensible to use busy instead of diligent?

While the synonyms busy and diligent are close in meaning, busy chiefly stresses activity as opposed to idleness or leisure.

too busy to spend time with the children

In what contexts can industrious take the place of diligent?

Although the words industrious and diligent have much in common, industrious implies characteristic or habitual devotion to work.

industrious employees

When would sedulous be a good substitute for diligent?

The words sedulous and diligent can be used in similar contexts, but sedulous implies painstaking and persevering application.

a sedulous investigation of the murder

Keep scrolling for more

Learn More about diligent

Time Traveler for diligent

Time Traveler

The first known use of diligent was in the 14th century

See more words from the same century

Listen to Our Podcast about diligent

Cite this Entry

“Diligent.” Thesaurus, Merriam-Webster, Accessed 3 Mar. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Keep scrolling for more

More from Merriam-Webster on diligent

Dictionary: Definition of diligent

Nglish: Translation of diligent for Spanish Speakers

Britannica English: Translation of diligent for Arabic Speakers

Comments on diligent

What made you want to look up diligent? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

February 2021 Words of the Day Quiz

  • squirrel in winter
  • Which is a synonym of perdure?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!