rig·​or·​ous | \ ˈri-g(ə-)rəs How to pronounce rigorous (audio) \

Definition of rigorous

1 : manifesting, exercising, or favoring rigor : very strict
2a : marked by extremes of temperature or climate
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 To be considered, Westfield Bank participated in a rigorous application process that asked for detailed information on how the organization addresses top-performer attraction, development and retention. Sam Boyer, cleveland, "Fun ways to take some of the scary out of Halloween: Whit & Whimsey," 16 Oct. 2020 The good grades from rigorous high schools and high test scores that make admissions officers salivate often result from the kind of parental attention that is generally easier for the affluent. Ron Lieber, New York Times, "How to Predict Merit Aid in a Strange College Application Season," 25 Sep. 2020 The guidance, which is more rigorous than what was used for emergency clearance of hydroxychloroquine or convalescent plasma, is an effort to shore up confidence in an agency that made missteps in its handling of those clearances. Author: Laurie Mcginley, Carolyn Y. Johnson, Anchorage Daily News, "FDA to announce tougher standards for vaccine that make approval by Election Day unlikely," 22 Sep. 2020 These facilities generally have healthier residents and lower COVID-19 infection rates, the Texas health agency said, so their visiting standards are less rigorous than nursing homes. Dallas News, "Only 12 Texas nursing homes approved to restart family visits," 22 Aug. 2020 The study was also criticized as an observational study, which is less rigorous than a randomized trial, USA TODAY reported. Ella Lee, USA TODAY, "Fact check: Hydroxychloroquine does not work better abroad," 20 Aug. 2020 After a rigorous review process that loops in engineers, health care workers, and university leadership, social scientists assess the tools’ real-world impacts on patients and workers. Erin Brodwin, STAT, "With ‘nutrition labels’ and an anthropologist’s eye, Duke pioneers a new approach to AI in medicine," 5 Oct. 2020 Senate Democrats, who want to block a preelection vote that would likely put Barrett on the Supreme Court, are now stepping up calls for rigorous coronavirus testing as a precondition for holding confirmation hearings beginning Oct. 12. Susan Ferrechio, Washington Examiner, "COVID infections intensify battle over Barrett confirmation timeline," 5 Oct. 2020 After rigorous testing and evaluation, the U.S. Environmental Protection Agency (EPA) registered copper alloys as public health materials. Stack Commerce, Popular Science, "This copper-coated phone case is a great addition to your pandemic arsenal," 5 Oct. 2020

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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Time Traveler for rigorous

Time Traveler

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

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Last Updated

21 Oct 2020

Cite this Entry

“Rigorous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rigorous. Accessed 29 Oct. 2020.

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More Definitions for rigorous


How to pronounce rigorous (audio)

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 How to pronounce rigorous (audio) \

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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Comments on rigorous

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