1
as in diligent
involved in often constant activity
the volunteers have been commendably laborious in their cleanup of the beach
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2
as in difficult
requiring considerable physical or mental effort
the laborious task of cleaning up the oil spill
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3
as in challenging
requiring much time, effort, or careful attention
that report is the product of months of laborious research
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Example Sentences
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Recent Examples of laborious
But the efforts have also targeted stores that went through the laborious process to become licensed dealers.
—
Andrew Wimer, Forbes, 21 Jan. 2025
Any attempt to short-circuit the laborious process of proposing new regulations that includes seeking comments from the public will almost surely invite credible legal challenges.
—Jack Ewing, New York Times, 21 Jan. 2025
In the decades before editing software, this was a laborious task that required splicing frames and repeatedly running footage through big Steenbeck flatbed machines.
—Michael Schulman, The New Yorker, 20 Jan. 2025
As may be expected, gathering and putting all the evidence together can be a laborious process.
—Aaron J. Masino, The Conversation, 10 Jan. 2025
See all Example Sentences for laborious 
Andrew Wimer, Forbes, 21 Jan. 2025
Any attempt to short-circuit the laborious process of proposing new regulations that includes seeking comments from the public will almost surely invite credible legal challenges.
—Jack Ewing, New York Times, 21 Jan. 2025
In the decades before editing software, this was a laborious task that required splicing frames and repeatedly running footage through big Steenbeck flatbed machines.
—Michael Schulman, The New Yorker, 20 Jan. 2025
As may be expected, gathering and putting all the evidence together can be a laborious process.
—Aaron J. Masino, The Conversation, 10 Jan. 2025
See all Example Sentences for laborious
Recent Examples of Synonyms for laborious
Adjective
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If the amount of delinquencies shown in the balance sheet is too large, perhaps the board is not being sufficiently diligent in the unhappy business of pursuing delinquent owners.—
Kelly G. Richardson,
San Diego Union-Tribune,
4 Feb. 2025
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Users should be diligent about verifying any unexpected file-sharing notification that hits their inbox and remain cautious of documents prompting sensitive actions, such as logging into accounts.—
Mike Britton,
Forbes,
24 Jan. 2025
Adjective
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Nevertheless, the offer could make OpenAI’s reorganization plans more difficult – and significantly more expensive.—
David Goldman,
CNN,
11 Feb. 2025
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The only thing that could make persuading a group of pandemic skeptics to care about an infectious-disease outbreak more difficult is your boss—the president of the United States—undercutting your raison d’être.—
Nicholas Florko,
The Atlantic,
11 Feb. 2025
Adjective
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But Kirby and Danielle said the past year has been incredibly challenging.—
Samantha Moilanen,
Chicago Tribune,
14 Feb. 2025
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His back nine was particularly challenging as the weather conditions deteriorated, resulting in one bogey and no birdies.—
Josh Hammer,
Newsweek,
14 Feb. 2025
Adjective
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But according to federal prosecutors, one Las Vegas woman prepared and filed false tax returns for her business and others at a busy average rate of nearly 80 per month.—
Adeel Hassan,
New York Times,
15 Feb. 2025
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December was busy as ever, squeezing in bites between holiday parties, restaurant reviews and end-of-year deadlines.—
Rachel Bernhard,
Journal Sentinel,
15 Feb. 2025
Adjective
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Using rigorous logical frameworks and Turing-computable methods, BigGraph ensures trustworthy, adaptable outcomes that align with business needs.—
Jason Phillips,
USA TODAY,
15 Feb. 2025
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That is thanks to many decades of rigorous bank supervision and regulation, as well as federal deposit insurance.—
Felix Salmon,
Axios,
14 Feb. 2025
Adjective
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Bridge benefit for older workers: Another key proposal is the creation of a bridge benefit for older workers with a history of physically demanding work.—
Justin Gest,
Newsweek,
11 Feb. 2025
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In July 2023, Kidman told PEOPLE that production for Lioness is a demanding but gratifying process.—
Catherine Santino,
People.com,
8 Feb. 2025
Adjective
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Santa Clara Mayor Lisa Gillmor, who was on the council in 2016, feels like her city was much more engaged last time around.—
Grace Hase,
The Mercury News,
9 Feb. 2025
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Dedicate a prize for the winning card to get everyone even more engaged.—
Cori Sears,
Better Homes & Gardens,
6 Feb. 2025
Adjective
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Both are now promising to stand up to Trump and make tough decisions to make Canada more resilient.—
Stephen Maher,
TIME,
15 Feb. 2025
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His positioning and angles are second to none, making tough saves look easy on a nightly basis in the NHL.—
Jesse Granger,
The Athletic,
15 Feb. 2025
Thesaurus Entries Near laborious
Cite this Entry
“Laborious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/laborious. Accessed 21 Feb. 2025.
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