1
as in difficult
requiring considerable physical or mental effort
climbing Mount Everest is an arduous, exhausting challenge
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2
as in challenging
requiring much time, effort, or careful attention
the arduous task of doing the research for my term paper
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Recent Examples of arduous
The core process of making cheese is not particularly arduous.
—
Dominick Williams, Kansas City Star, 6 May 2025
But playing the game, each day is an arduous journey in their own right; conversely the show speeds through day one in a single episode.
—Christopher Cruz, Rolling Stone, 5 May 2025
Spending time with Steve Carell, Tina Fey, Will Forte, and especially Colman Domingo will never be arduous or unfunny.
—Ben Travers, IndieWire, 1 May 2025
Legal scholars warn that revoking birthright citizenship would likely require a constitutional amendment, an arduous process involving approval by two-thirds of Congress and ratification by three-fourths of the states.
—Tahar Rajab, MSNBC Newsweek, 15 May 2025
See All Example Sentences for arduous
Dominick Williams, Kansas City Star, 6 May 2025
But playing the game, each day is an arduous journey in their own right; conversely the show speeds through day one in a single episode.
—Christopher Cruz, Rolling Stone, 5 May 2025
Spending time with Steve Carell, Tina Fey, Will Forte, and especially Colman Domingo will never be arduous or unfunny.
—Ben Travers, IndieWire, 1 May 2025
Legal scholars warn that revoking birthright citizenship would likely require a constitutional amendment, an arduous process involving approval by two-thirds of Congress and ratification by three-fourths of the states.
—Tahar Rajab, MSNBC Newsweek, 15 May 2025
See All Example Sentences for arduous
Recent Examples of Synonyms for arduous
Adjective
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But the fact that Schwartzman, in his first film, was given the difficult task of stealing laughs away from a comedy legend, and so often succeeds in doing so, gives him the slight edge.—
Shannon Carlin,
Time,
30 May 2025
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Dietary fat can be difficult to digest and may cause more irritation and pain.—
Chelsea Rae Bourgeois,
Health,
30 May 2025
Adjective
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Now, consumer spending has been getting a little bit more challenging.—
Jean E. Palmieri,
Footwear News,
3 June 2025
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Building wealth can be a challenging task, especially in challenging economic times.—
Anne-Lyse Ngatta,
Forbes.com,
3 June 2025
Adjective
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This is a time for doing the tough, often unglamorous job of making the city function for all New Yorkers.—
Scott Stringer,
New York Daily News,
3 June 2025
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When staring at twin suns like from much greater distances — many light-years away — astronomers have a much tougher time than young Skywalker in determining two stars from one.—
Robert Lea,
Space.com,
3 June 2025
Adjective
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The nausea is now mostly in the past, Lauren says, and the Lanes are realizing that getting ready for a third child isn’t as demanding as earlier preparations.—
Nancy Kruh,
People.com,
30 May 2025
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Work and home will be equally demanding, as Venus meets with Jupiter on June 4.—
Liz Simmons,
StyleCaster,
27 May 2025
Adjective
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The Council for Higher Education Accreditation ensures accrediting agencies uphold rigorous standards.—
Hanna Park,
CNN Money,
5 June 2025
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These days, most people delivering your forecasts are scientists with rigorous training in calculus, fluid dynamics, thermodynamics, atmospheric physics and the other meteorological coursework.—
Marshall Shepherd,
Forbes.com,
5 June 2025
Adjective
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Sandoval has received some pay bumps, including a temporary $10,000-a-year bonus for Hawaii special education teachers designed to alleviate shortages in that and other hard-to-staff areas.—
Alia Wong,
USA TODAY,
14 Feb. 2023
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Whether those numbers are an overstatement, or possibly an understatement, is hard to say.—
Lance Eliot,
Forbes,
13 Feb. 2023
Adjective
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Sinha’s strategic interventions have substantially scaled up businesses, powering a formidable sales pipeline by assisting the company in landing enterprise-level engagements.—
Daniel Fusch,
USA Today,
3 June 2025
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Everything points to the fact that Karolína’s exceptional talent has caught the attention of the formidable and much admired choirmaster.—
Leo Barraclough,
Variety,
3 June 2025
Cite this Entry
“Arduous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/arduous. Accessed 9 Jun. 2025.
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