arduous

adjective

ar·​du·​ous ˈär-jə-wəs How to pronounce arduous (audio)
-dyu̇-,
-jü-əs
1
a
: hard to accomplish or achieve : difficult
an arduous task
years of arduous training
b
: marked by great labor or effort : strenuous
… a life of arduous toil.A. C. Cole
2
: hard to climb : steep
an arduous path
arduously adverb
arduousness noun

Did you know?

Arduous isn’t the type of word one expects to hear in a folk song—it’s a bit too formal—but strenuous work and difficult journeys are the stuff of many a classic tune. Take “The Wayfaring Stranger,” for an example, a somber song about life’s travails performed by everyone from singer and activist Paul Robeson to country star Emmylou Harris: “I know dark clouds will gather o’er me / I know my pathway’s rough and steep.” Such a lyric gets at the dual literal/figurative nature of arduous, which comes from the Latin adjective arduus, meaning “high,” “steep,” or “difficult.” For quite a while after appearing in English in the mid-1500s, arduous hewed closely to the figurative “strenuous” or “difficult” sense until poet Alexander Pope invoked steepness when he wrote of “those arduous paths they trod” in his 1711 work “An Essay on Criticism.” To pen such a work at the age of 23, and in heroic couplets no less, must have been an arduous challenge indeed, but like the wayfaring stranger seeking a brighter land, Pope had his eyes on the prize.

Choose the Right Synonym for arduous

hard, difficult, arduous mean demanding great exertion or effort.

hard implies the opposite of all that is easy.

farming is hard work

difficult implies the presence of obstacles to be surmounted or puzzles to be resolved and suggests the need of skill or courage.

the difficult ascent of the mountain

arduous stresses the need of laborious and persevering exertion.

the arduous task of rebuilding

Examples of arduous in a Sentence

Traveling for several days by train, stagecoach and horseback, they would reach Mariposa Grove, a stand of some 200 ancient giant sequoias, where they would rest before embarking on an arduous descent via 26 switchbacks into the valley. Tony Perrottet, Smithsonian, July 2008
As yoga classes go, this is not an arduous one, but the students don't know that. Richard Corliss, Time, 23 Apr. 2001
Women of middling means had the most to gain from increased consumption, for imported goods often reduced their long and arduous labor, especially in making candles and soap or in spinning and weaving cloth. Alan Taylor, American Colonies, 2000
He went through a long and arduous training program. an arduous journey across miles of desert
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
State DOTs are responsible for developing projects and coordinating with site owners and charging companies, which can be an arduous process, markedly different from planning routine infrastructure projects. Bob Woods, CNBC, 16 Mar. 2025 That means no arduous stirring to reincorporate it. Sam Stone, Bon Appétit, 13 Mar. 2025 Brandon Johnson grabbed a rebound and slammed down the game-winning dunk with one second remaining on Saturday afternoon, pushing the Miami Hurricanes ahead 72-70 over N.C. State and ending his college career and an arduous UM season with an exclamation point. Michelle Kaufman, Miami Herald, 8 Mar. 2025 Due to the 85,000 numerical ceiling, getting permission to sponsor a highly skilled worker is arduous. Stuart Anderson, Forbes, 6 Mar. 2025 See All Example Sentences for arduous

Word History

Etymology

Latin arduus high, steep, difficult; akin to Old Irish ard high

First Known Use

1549, in the meaning defined at sense 1b

Time Traveler
The first known use of arduous was in 1549

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Cite this Entry

“Arduous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arduous. Accessed 25 Mar. 2025.

Kids Definition

arduous

adjective
ar·​du·​ous ˈärj-(ə-)wəs How to pronounce arduous (audio)
: extremely difficult : laborious
an arduous climb
arduously adverb
arduousness noun

More from Merriam-Webster on arduous

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