rig·or·ous | \ ˈri-g(ə-)rəs \

Definition of rigorous 

1 : manifesting, exercising, or favoring rigor : very strict

2a : marked by extremes of temperature or climate

b : harsh, severe

3 : scrupulously accurate : precise

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Other words from rigorous

rigorously adverb
rigorousness noun

Choose the Right Synonym for rigorous

rigid, rigorous, strict, stringent mean extremely severe or stern. rigid implies uncompromising inflexibility. rigid rules of conduct rigorous implies the imposition of hardship and difficulty. the rigorous training of recruits strict emphasizes undeviating conformity to rules, standards, or requirements. strict enforcement of the law stringent suggests severe, tight restriction or limitation. stringent standards of admission

Examples of rigorous in a Sentence

rigorous enforcement of the rules a rigorous course of study We subjected the data to a rigorous analysis.
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Recent Examples on the Web

The exhibits at the Williams College Museum of Art are deliciously rigorous and, in the spirit of academic inquiry, seem to openly question the practices of museums. Milwaukee Journal Sentinel, "New England museums to visit this summer and fall," 4 July 2018 Wilcox is also talking about setting tighter controls over what is taught at each school and in each grade level to ensure that all students get the same rigorous instruction. Ann Doss Helms, charlotteobserver, "CMS leader has won fans among teachers. But these moves may test their loyalty.," 13 July 2018 Hannau will play For Bunita Marcus, a 1985 work that explores similar territory; rigorous repetition gives way to subtle changes akin to the kind of imperfections Feldman loved in Persian rugs. Peter Margasak, Chicago Reader, "Two Chicago pianists perform a pair of rarely heard masterpieces by Morton Feldman," 12 July 2018 The difference is that Toptal has a very rigorous screening process and accepts only the top 3% of all freelancer applicants. Steve Strauss, USA TODAY, "Get your gig: Here are the 9 best sites to visit for freelance or contract work," 12 July 2018 Like Gorsuch, Kavanaugh attended Georgetown Preparatory School, a rigorous Jesuit school. Brian Bennett, Time, "How Brett Kavanaugh Could Change the Supreme Court—and America," 12 July 2018 The treatment plan includes rigorous water sampling to allow adjustments for dosage levels for subsequent applications planned for later this summer. Courant Community, "Community News For The Windham Edition," 10 July 2018 Looking happy to be taking a break from her rigorous Reputation Stadium Tour, Swift rocked a blue and white striped bikini while Alwyn, beer in hand, sported navy swim trunks. Rita Thompson, Billboard, "Taylor Swift Holds Hands With Boyfriend Joe Alwyn in Turks and Caicos: See the Sweet Pic," 10 July 2018 High-wheeled cycling and rigorous team sports were acceptable only for young men. Aaron Gilbreath, Longreads, "The Wheel, the Woman, and the Human Body," 6 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rigorous.' 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 rigorous

15th century, in the meaning defined at sense 1

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Dictionary Entries near rigorous



rigor mortis





Statistics for rigorous

Last Updated

8 Sep 2018

Look-up Popularity

Time Traveler for rigorous

The first known use of rigorous was in the 15th century

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English Language Learners Definition of rigorous

: very strict and demanding

: done carefully and with a lot of attention to detail

: difficult to endure because of extreme conditions


rig·or·ous | \ ˈri-gə-rəs \

Kids Definition of rigorous

1 : very strict rigorous rules

2 : hard to endure because of extreme conditions : harsh rigorous winters

Other words from rigorous

rigorously adverb

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More from Merriam-Webster on rigorous

Thesaurus: All synonyms and antonyms for rigorous

Spanish Central: Translation of rigorous

Nglish: Translation of rigorous for Spanish Speakers

Britannica English: Translation of rigorous for Arabic Speakers

Comments on rigorous

What made you want to look up rigorous? Please tell us where you read or heard it (including the quote, if possible).


the setting in which something occurs

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