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1. Dictionary

   rigorous

   /ˈrɪɡ(ə)rəs/

   adjective

   • 1. extremely thorough and careful: "the rigorous testing of consumer products" Similar meticulouspunctiliousconscientiouscarefuldiligentattentiveultra-carefulscrupulouspainstakingexactpreciseaccuratecorrectthoroughstudiousexhaustivemathematicaldetailedperfectionistmethodicalparticularreligiousstrictfussyfastidioushair-splittingfinickyfinicaldemandingexactingpedanticinformal:nitpickingpernicketypersnicketyarchaic:niceovernicelaboriousOpposite slapdash
   • ▪ (of a rule, system, etc.) strictly applied or adhered to: "rigorous controls on mergers" Similar strictseveresternstringentausterespartantoughhardharshrigidcruelsavagerelentlessunsparinginflexibleauthoritariandespoticdraconianintransigentuncompromisingdemandingexactingOpposite lax
   • ▪ (of a person) adhering strictly to a belief or system: "a rigorous teetotaller" Similar strictseveresternstringentausterespartantoughhardharshrigidcruelsavagerelentlessunsparinginflexibleauthoritariandespoticdraconianintransigentuncompromisingdemandingexactingOpposite lax
   • ▪ harsh and demanding: "many of the expedition had passed rigorous SAS courses" Similar harshseverebadbleakextremeinclementunpleasantdisagreeablefoulnastyfilthystormyblusterysquallywildtempestuousstorm-tossedviolentheavyheavingragingchoppyagitatedOpposite gentlemild

   Word Origin late Middle English: from Old French rigorous or late Latin rigorosus, from rigor ‘stiffness’ (see rigor1).

   Derivatives

   • 1. rigorousness noun

   Scrabble Points: 9

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   More definitions, origin and scrabble points

2. dictionary.cambridge.org › dictionary › englishRIGOROUS | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   RIGOROUS definition: 1. careful to look at or consider every part of something to make certain it is correct or safe…. Learn more.

3. www.merriam-webster.com › dictionary › rigorousRigorous Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › rigorous

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   The meaning of RIGOROUS is manifesting, exercising, or favoring rigor : very strict. How to use rigorous in a sentence. Synonym Discussion of Rigorous.

4. dictionary.cambridge.org › us › dictionaryRIGOROUS | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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   RIGOROUS meaning: 1. careful to look at or consider every part of something to make certain it is correct or safe…. Learn more.

5. www.collinsdictionary.com › dictionary › englishRIGOROUS definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   A test, system, or procedure that is rigorous is very thorough and strict. The selection process is based on rigorous tests of competence and experience. American English : rigorous / ˈrɪgərəs /

6. www.dictionary.com › browse › rigorousRIGOROUS Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › rigorous

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   Rigorous is used to describe things characterized by rigor—strict discipline or severe exactness and precision. Describing an experiment or study as rigorous means it was conducted with extreme precision in order to achieve accuracy.

7. www.vocabulary.com › dictionary › rigorousRigorous - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › rigorous

   If you are rigorous when you do something, you do it extremely carefully and precisely. A rigorous inspection of your tax records has revealed the government owes you money. Congratulations! The Latin root for rigorous is rigor, meaning “stiffness.”.

8. www.thefreedictionary.com › rigorousRigorous - definition of rigorous by The Free Dictionary

   www.thefreedictionary.com › rigorous

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   adj. 1. characterized by or proceeding from rigour; harsh, strict, or severe: rigorous discipline. 2. severely accurate; scrupulous: rigorous book-keeping. 3. (esp of weather) extreme or harsh. 4. (Mathematics) maths logic (of a proof) making the validity of the successive steps completely explicit. 5.