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
  • Soothe a sunburn No judgement: sunburns sometimes happen to even the most diligent sunscreen wearers.
    Holly Carter, People.com, 9 June 2025
  • Some ideas include creating easy-to-use complaint systems, requiring permit numbers in all advertising, and doing diligent code enforcement, with monthly reports of actual rental days and monthly electronic collection of bed taxes.
    Teri Sforza, Oc Register, 6 June 2025
Adjective
  • Company boards and top management teams should be willing and interested in hearing detailed analysis and constructive criticism from engaged shareholders.
    Alexander Savin, Forbes.com, 10 June 2025
  • Still, finding a way to stay engaged is particularly important at the local level, where decisions made by school boards, planning commissions, and county commissioners affect our everyday lives — from housing and transit to safety and the environment.
    Cheryl Rogers, The Orlando Sentinel, 6 June 2025
Adjective
  • In the summer, people here are too busy enjoying themselves—drinking on patios, reading languorous books, stretching weekends in Crystal Beach or Sherkston out over three, four, five days—to do much of any importance.
    Aidan Ryan June 4, Literary Hub, 4 June 2025
  • But given her busy schedule, Burke said, it’s been a hard date to nail down.
    Bailey Richards, People.com, 4 June 2025

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Cite this Entry

“Assiduous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/assiduous. Accessed 17 Jun. 2025.

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