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rigorous Line breaks: rigor|ous
Pronunciation: /ˈrɪɡ(ə)rəs/

Definition of rigorous in English:


1Extremely thorough and careful: the rigorous testing of consumer products
More example sentences
  • Her approach to film is not unlike that of photography: careful composition, rigorous planning of the frame, scrupulous attention to visual detail and regular use of a stationary camera.
  • Analysis of results was extremely rigorous, and the dissertation was also noteworthy for its clarity of presentation, with complex results presented in a logical and understandable manner.
  • He has not provided any rigorous analysis or even detailed explanation of these alleged technical problems.
fussy, fastidious, hair-splitting, finicky, finical, demanding, exacting, pedantic
North American informal persnickety
archaic nice, overnice, laborious
1.1(Of a rule, system, etc.) strictly applied or adhered to: rigorous controls on mergers
More example sentences
  • Such a culture, based on the most rigorous rules of court etiquette and procedure, naturally gave rise to correspondingly formalised aesthetic theories of music and the theatre.
  • Over the past year, 180 solutions has attempted to clean up its image and now enforces rigorous rules on its affiliates and has added safeguards into its software.
  • Any bottle of champagne has to follow a very rigorous set of rules to qualify for the ‘champagne’ label.
1.2(Of a person) adhering strictly to a belief or system: a rigorous teetotaller
More example sentences
  • When there's four of us, we are very rigorous in what we allow through.
  • He is rigorous in his methods: if a picture needs a caption to explain it, he believes it has failed.
  • The rigorous self-discipline of the Presbyterian work ethic, however, did not grip the Kane household.
1.3Harsh and demanding: many of the expedition had passed rigorous SAS courses
More example sentences
  • Charter schools, higher standards, rigorous demands on teachers, and smaller class size, he writes, are all diversions, aimed at keeping us from striking at the real heart of the problem.
  • University is difficult enough with rigorous course work, steep fees and social demands, but try to imagine attending while severely disabled.
  • The challenge then became to be physically competent enough to cope with the rigorous demands of filming, and to cut a suitably believable action hero.
harsh, severe, bad, bleak, extreme, inclement;
unpleasant, disagreeable, foul, nasty, filthy;


Late Middle English: from Old French rigorous or late Latin rigorosus, from rigor 'stiffness' (see rigor1).



Pronunciation: /ˈrɪɡ(ə)rəsli/
Example sentences
  • The arithmetic and the data might be rigorously correct, but the result would not illuminate anything that was actually happening to anybody.
  • Users and information must be rigorously authenticated and authorised.
  • Old icons have been enshrined, and boundaries rigorously guarded.


Pronunciation: /ˈrɪɡ(ə)rəsnəs/
Example sentences
  • The very rigorousness and severity of its religious and ethical code of conduct have contributed to its resilience and survival as a minority in all parts of India.
  • He prefaces them with introductory essays that paint a vivid picture of an assertive faith characterized by ‘emotionalism, ecstasy, rigorousness, exuberance, and evangelism.’
  • Users should look seriously at their document repository requirements before embarking to make sure that the rigorousness of the tools selected provides the rigorousness they need.

Words that rhyme with rigorous


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