Synonym Chooser

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

Some common synonyms of assiduous are busy, diligent, industrious, and sedulous. While all these words mean "actively engaged or occupied," assiduous stresses careful and unremitting application.

assiduous practice

When is it sensible to use busy instead of assiduous?

Although the words busy and assiduous have much in common, busy chiefly stresses activity as opposed to idleness or leisure.

too busy to spend time with the children

When could diligent be used to replace assiduous?

The words diligent and assiduous are synonyms, but do differ in nuance. Specifically, diligent suggests earnest application to some specific object or pursuit.

very diligent in her pursuit of a degree

When would industrious be a good substitute for assiduous?

While in some cases nearly identical to assiduous, industrious implies characteristic or habitual devotion to work.

industrious employees

When can sedulous be used instead of assiduous?

The meanings of sedulous and assiduous largely overlap; however, sedulous implies painstaking and persevering application.

a sedulous investigation of the murder

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of assiduous In any case, an assiduous pre-inspection is essential. Robert Ross, Robb Report, 14 Feb. 2025 Every song reveals new layers, showcasing not just a singer, but a true artist and assiduous researcher, constantly pushing the boundaries and discovering new ways to express the timeless journey of love. Mario Sesti, The Hollywood Reporter, 3 Sep. 2019 The corruption alleged is less eye-popping than assiduous. The Editors, National Review, 27 Sep. 2024 In this new era, Russia and China represent neither chess pieces to be moved through assiduous acts of wise statesmanship nor great-power challengers that can be handled effectively without American activism. Richard Fontaine, Foreign Affairs, 18 Nov. 2022 See All Example Sentences for assiduous
Recent Examples of Synonyms for assiduous
Adjective
  • Clark said locally, at San Dimas’ Via Verde Country Club and Pomona’s Mountain Meadows Golf Course, Spaun is remembered as a diligent kid who put in a lot of time working on his game.
    Mirjam Swanson, Oc Register, 16 June 2025
  • The only way to avoid False Dividend Stocks is with diligent fundamental research on cash flows.
    David Trainer, Forbes.com, 12 June 2025
Adjective
  • His envoy Steve Witkoff remains engaged on the issue.
    Niall Stanage, The Hill, 21 June 2025
  • Employees who see their input shaping real change are far more likely to remain engaged and loyal.
    Pete First, Forbes.com, 20 June 2025
Adjective
  • He's got a busy schedule ahead, starring in season 2 of Peacock's Twisted Metal and Alex Winter's upcoming Adulthood.
    EW.com, EW.com, 28 June 2025
  • Meanwhile, Lucas was busy writing his own take on Episodes VII, VIII, and IX, before ultimately deciding to hand off his empire to the House of Mouse.
    Daryl Baxter, Space.com, 28 June 2025

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Cite this Entry

“Assiduous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/assiduous. Accessed 2 Jul. 2025.

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