rigorous

adjective
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
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 first rigorous study to assess the impact of ASMR on mood and physiology was published in 2018. Karen Pallarito, Health.com, "How Does ASMR Work? The Science Behind Those Brain-Tingling Sounds," 6 June 2019 The rigorous processes for approving airplanes and medical devices come at a high cost. Timothy B. Lee, Ars Technica, "Fully driverless Waymo taxis are due out this year, alarming critics," 1 Oct. 2018 Adopting families must go through a rigorous screening process to ensure the sniffer dogs are not put to work for private security companies. Joshua Goodman And Manuel Rueda, Fox News, "Colombia honors 14 sniffer dogs at emotional retirement," 21 Sep. 2018 Inmates may now accept books from family and online retailers, but only after those books have undergone a rigorous screening process. Lauren Lumpkin, baltimoresun.com, "Maryland prisons rescind controversial policy that advocates say restricted inmate book access," 12 June 2018 This advice is the result of a rigorous review of 312 studies by an interdisciplinary panel of 18 experts, including some of the foremost sleep experts in the country. Carolyn L. Todd, SELF, "How Much Sleep Do I Need?," 21 Mar. 2019 Aides described a process of simply using Google searches to vet candidates during the transition, as well as soliciting recommendations from other political appointees, before the more rigorous White House vetting process was underway. Cliff Pinckard, cleveland.com, "Guns banned from NRA event with Mike Pence: A.M. News Links," 30 Apr. 2018 Bedell was quick to point out that the AISC certification process continues to evolve and becomes more rigorous to ensure quality to customers. Staff Report, Houston Chronicle, "Mobil Steel achieves quality fabrication standard," 27 Mar. 2018 Climate scientists and others who oppose the debate idea note that the studies that make up the body of knowledge on climate change already are subject to rigorous peer review. Lisa Friedman And Julie Hirschfeld Davis, New York Times, "The E.P.A Chief Wanted a Climate Science Debate. Trump’s Chief of Staff Stopped Him.," 9 Mar. 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

rigorism

rigor mortis

rigorous

rigour

rig-out

rigsby

Statistics for rigorous

Last Updated

16 Jun 2019

Look-up Popularity

Time Traveler for rigorous

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

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More Definitions for rigorous

rigorous

adjective

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

rigorous

adjective
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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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

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