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
  • Although resilience often looks like luck or good character, the ability to prevent or reduce losses from any type of risk entails careful planning and diligent efforts.
    Louis Gritzo, Forbes.com, 15 July 2025
  • The group was not always diligent about following military directives.
    Asaf Elia-Shalev, Sun Sentinel, 14 July 2025
Adjective
  • Unlike other collabs or license deals where a celebrity or brand just adds their logo to a product, J Balvin has been very engaged at every step of the process.
    Roxanne Robinson, Forbes.com, 15 July 2025
  • After Goldman placed a veil on Hilliker, the engaged couple entered a room full of their friends cheering them on.
    Rachel Raposas, People.com, 14 July 2025
Adjective
  • Ever since then, it’s been sitting on the shore, beached like a shipwreck, just feet from a busy highway.
    John Carlisle, Freep.com, 23 July 2025
  • Horton said summer is always the busiest, with the program planning several events each month to combat the rise in homicides and violent crimes as the weather warms.
    Keely Doll, The Courier-Journal, 23 July 2025

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Cite this Entry

“Assiduous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/assiduous. Accessed 29 Jul. 2025.

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