Synonyms & Antonyms of arduous

2 requiring much time, effort, or careful attention
  • the arduous task of doing the research for my term paper

Synonyms for arduous

Words Related to arduous

Near Antonyms for arduous

Antonyms for arduous

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Frequently Asked Questions About arduous

How is the word arduous different from other adjectives like it?

The words difficult and hard are common synonyms of arduous. While all three words mean "demanding great exertion or effort," arduous stresses the need of laborious and persevering exertion.

the arduous task of rebuilding

When could difficult be used to replace arduous?

While in some cases nearly identical to arduous, 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

When is it sensible to use hard instead of arduous?

The synonyms hard and arduous are sometimes interchangeable, but hard implies the opposite of all that is easy.

farming is hard work

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The first known use of arduous was in 1549

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Cite this Entry

“Arduous.” Thesaurus, Merriam-Webster, Accessed 29 Jun. 2022.

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More from Merriam-Webster on arduous

Nglish: Translation of arduous for Spanish Speakers

Britannica English: Translation of arduous for Arabic Speakers


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