laborious

adjective
la·​bo·​ri·​ous | \ lə-ˈbȯr-ē-əs How to pronounce laborious (audio) \

Definition of laborious

1a : involving, requiring, or characterized by hard and sustained effort : arduous Overland travel was not an adventurous communal leap, but a laborious, individual trek.— Daniel J. Boorstin Making a telescope mirror is a long and laborious process.— David Devoss and Eric Sander
b : characterized by long, detailed elaboration : tedious Much of the middle of the book is a laborious account of the scouring of the ocean floor that led to the discovery of the Titanic.The Economist
2 : devoted to labor : industrious We have the greatest riches, the greatest fertility, … the most laborious population.— Joseph Conrad

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Other Words from laborious

laboriously adverb
laboriousness noun

Examples of laborious in a Sentence

a slow and laborious process the volunteers have been commendably laborious in their cleanup of the beach
Recent Examples on the Web The scene was laborious, requiring extensive prosthetic work – with custom silicone pieces made from molds of their faces strategically attached before each star was meticulously made up to look more natural. Bryan Alexander, USA TODAY, "Here's how that 'Bad Trip' tribute to 'White Chicks' went down with Eric André, Tiffany Haddish (spoilers!)," 4 Apr. 2021 And keeping colonies of social insects alive can be laborious. Yao-hua Law, Science | AAAS, "What can ants, bees, and other social insects teach us about aging?," 25 Mar. 2021 The 20-year-old job seeker who lives in Leesburg, Va., is autistic, and both speaking and writing can be laborious for him. Washington Post, "Young man with autism pens viral employment letter: ‘take a chance on me’," 22 Mar. 2021 The process took minutes to hours and was laborious. Katharine Gammon | Inside Science, ABC News, "Sperm whales learned to avoid whaling ships -- and warned other whales," 21 Mar. 2021 Machine washing was less laborious than hand-washing, but took about the same time to complete. Elizabeth Wallace, CNN Underscored, "The best silk pillowcases of 2021," 17 Mar. 2021 To achieve this high level of quality, craftspeople in villages around Dhaka followed a laborious, 16-step process. Livia Gershon, Smithsonian Magazine, "How Modern Researchers Are Trying to Recreate a Long-Lost Fabric," 26 Mar. 2021 In order to sneak a bite-size amount of control and warm feeling for themselves, a privileged set of young Americans mount laborious and costly self-care rituals. Choire Sicha, The New York Review of Books, "I, Phone," 23 Mar. 2021 Until recently, gathering athletes' performance data was a laborious process. Sandy Thin, CNN, "How wearable tech helped elite athletes through the pandemic," 5 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'laborious.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of laborious

14th century, in the meaning defined at sense 2

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Time Traveler for laborious

Time Traveler

The first known use of laborious was in the 14th century

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Statistics for laborious

Last Updated

16 Apr 2021

Cite this Entry

“Laborious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/laborious. Accessed 20 Apr. 2021.

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More Definitions for laborious

laborious

adjective

English Language Learners Definition of laborious

: requiring a lot of time and effort

laborious

adjective
la·​bo·​ri·​ous | \ lə-ˈbȯr-ē-əs How to pronounce laborious (audio) \

Kids Definition of laborious

: requiring much effort Rebuilding was a slow and laborious task.

Other Words from laborious

laboriously adverb

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Comments on laborious

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