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 journey to wearing the crimson and blue has been long and arduous for Diggins.
—
Shreyas Laddha, Kansas City Star, 8 May 2025
That’s because federal recognition is often a decades-long and arduous process that requires verifying the Indigenous lineage of each tribal member and documenting the continuous government operations of the tribe since 1900.
—Noah Haggerty, Los Angeles Times, 6 May 2025
Meanwhile, the House Ways and Means Committee, which has the arduous task of crafting the massive tax portion of the bill, had aimed to mark up this week, but that plan is on thin ice as the panel struggles to work through a series of hot-button issues.
—Emily Brooks, The Hill, 4 May 2025
According to reports, nearly four months after the wildfires, residents have begun the arduous process of rebuilding, with only a few permits approved due to the traditionally slow and intricate permitting process.
—Ron Schmelzer, Forbes.com, 3 May 2025
See All Example Sentences for arduous
Recent Examples of Synonyms for arduous
Adjective
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Two of Elissa’s tumors were obliterated that day, but the third was too difficult to reach without repositioning Elissa’s body in a way that would have taken too much time under anesthesia.—
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Luca Solca sector head for global luxury goods at Bernstein Clouding the picture further, many other premium Swiss watchmakers including Rolex, Patek Philippe and Audemars Piguet, are privately owned, making their performance difficult to decipher.—
Adjective
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In this one-man show, Whitfield steps onstage not just as a performer, but as a guide—challenging, inspiring, and activating the ABFF community to transform their pain into purpose.—
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The new bill, advocates said, is also expected to be particularly challenging for Native Americans who rely on tribal cards for identification ‒ which typically don't include place of birth, as the new law requires.—
Adjective
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Dapple Baby takes this task very seriously, offering a fragrance-free formula that’s tough on stains yet gentle on newborn skin.—
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That’s really tough to stop from turning into scoring opportunities for the opponent.—
Adjective
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Additionally, ensuring data accuracy and integrity within compliance features, especially for reporting and audit trails, can be technically demanding and prone to errors if not carefully managed.—
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That, plus more demanding processors, higher burst rates, and video modes, means mirrorless cameras get less battery life than DSLRs.—
Adjective
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Members have included figures such as Benjamin Franklin, Charles Darwin and Martin Luther King Jr. New members are chosen through a rigorous nomination and election process, according to the academy.—
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Digital forensics demands rigorous methodology to ensure evidence integrity and reliable findings.—
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.—
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Whether those numbers are an overstatement, or possibly an understatement, is hard to say.—
Adjective
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Each pits a young heroine of humble means against the formidable, possibly sinister lady of the estate; this time, that quintessential Nicole Kidman role is played by a serenely terrifying Julianne Moore.—
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Selling a descent from stress into a state of devastation that can never be shed (only briefly reprised) is the formidable actress Parinaz Izadyar.—
Cite this Entry
“Arduous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/arduous. Accessed 25 May. 2025.
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