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Alternative forms[edit]


From Old French, from Late Latin rigorosus.


  • IPA(key): /ˈɹɪɡəɹəs/
  • (file)
  • Rhymes: -ɪɡəɹəs


rigorous (comparative more rigorous, superlative most rigorous)

  1. Showing, causing, or favoring rigour; scrupulously accurate or strict; thorough.
    a rigorous officer of justice
    a rigorous execution of law
    a rigorous inspection
    • 2013 August 3, “Boundary problems”, in The Economist, volume 408, number 8847:
      Economics is a messy discipline: too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric, gross domestic product (GDP), is a tangle too. GDP measures the total value of output in an economic territory. Its apparent simplicity explains why it is scrutinised down to tenths of a percentage point every month.
  2. Severe; intense.
    a rigorous winter.



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Related terms[edit]


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.

Further reading[edit]

  • rigorous at OneLook Dictionary Search
  • rigorous in The Century Dictionary, New York, N.Y.: The Century Co., 1911.