Definition of assiduousnext

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 The timely message is told in a frequently absurd yet affecting style, including through the assiduous mo-cap of its A-list cast (which includes Léa Seydoux, Elle Fanning, and George Miller). Lewis Gordon, Vulture, 3 Dec. 2025 The body, which was created in 1829, has been assiduous in ensuring its members receive fair payment for their work in the digital age. Melanie Goodfellow, Deadline, 14 Nov. 2025 Amid this totalizing assault, the nutria’s assiduous gnawing may seem a relatively mild insult; in the state’s coastal-threat index, the nutria would come in sixth place. Nathaniel Rich, Harpers Magazine, 20 Aug. 2025 Record sales were up, and due to his assiduous efforts, Colonel never tired of reminding Snow, all sorts of new, high-paying opportunities in radio and television were starting to open up. Jem Aswad, Variety, 5 Aug. 2025 See All Example Sentences for assiduous
Recent Examples of Synonyms for assiduous
Adjective
  • Some reviewers are unhappy with slow results — but Hers products are most effective when used consistently for a minimum of three months, and there’s no way of knowing how diligent these reviewers were.
    Rebecca Strong, USA Today, 25 Mar. 2026
  • Herzog depicts the bushmen who aid Boyes as dignified, diligent and intelligent without romanticizing them while capturing the rugged beauty of the African landscape.
    Stuart Miller, Los Angeles Times, 24 Mar. 2026
Adjective
  • In a new dark comedy (now in theaters) from Dream Scenario director Kristoffer Borgli, Robert Pattinson and Zendaya play Charlie and Emma, an engaged couple whose wedding plans are thrown into disarray when the latter makes a disturbing confession.
    Tiffany Kelly, Entertainment Weekly, 3 Apr. 2026
  • Performance Data Helps Teams Focus on What Works Content strategy can become more effective when teams identify which pages attract attention, which channels drive visits, and which topics keep users engaged and loyal.
    William Jones, Miami Herald, 3 Apr. 2026
Adjective
  • With busy schedules, sitting down to eat a meal as a family can be tricky and cause feelings of guilt.
    Dr. Sarah Kinsella, Boston Herald, 5 Apr. 2026
  • Each carried one passenger in the back seat, all of them busy on their phones.
    Catherine Lacey, New Yorker, 5 Apr. 2026

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Cite this Entry

“Assiduous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/assiduous. Accessed 6 Apr. 2026.

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