as in diligent
involved in often constant activity
the fascinating sight of assiduous ants carrying food into the anthill
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Recent Examples of assiduous
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.
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Jem Aswad, Variety, 5 Aug. 2025
Astronomy has lost one of its most assiduous calculators of eclipses with the passing of astronomer Fred Espenak.
—Joe Rao, Space.com, 3 June 2025
Millay, an assiduous reader and enthusiastic quoter of poetry, was surely familiar with their work.
—A.o. Scott, New York Times, 1 May 2025
China has since become Zimbabwe’s largest trading partner and an assiduous supporter of the regime (and along with South Africa may have given its blessing to the recent coup).
—John Campbell, Foreign Affairs, 17 Nov. 2017
See All Example Sentences for assiduous
Recent Examples of Synonyms for assiduous
Adjective
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But such diligent injury prevention doesn’t address the root cause of Rec League Dysmorphia.—
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Iran thus has every right to demand that the IAEA be diligent in observing its own procedures and codes of conduct on impartiality, objectivity, confidentiality, and sensitivity to national security concerns in exchange for continued cooperation.—
Adjective
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Those late audits have caused ongoing comments by engaged residents who are perplexed that year after year the town’s government is not able to provide the same audit the state’s other 168 municipalities complete and submit to the public and the state’s budget office.—
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Guiliani said her students have been more engaged and focused.—
Adjective
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Visiting the restaurant has become an expression of the purest form of Panthers fandom — and that’s helped make this week quite busy ahead of the Panthers’ first home playoff game in 10 years.—
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Those who remain are concentrated in Venezuela’s cities, including its capital, Caracas, where the street market in the Catia neighborhood once was so busy that shoppers bumped into one another and dodged oncoming traffic.—
Cite this Entry
“Assiduous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/assiduous. Accessed 13 Jan. 2026.
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