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1. Dictionary

   Rig·or·ous

   /ˈriɡ(ə)rəs/

   

   adjective

   • 1. extremely thorough, exhaustive, or accurate: "the rigorous testing of consumer products" Similar meticulouspunctiliousconscientiouscarefuldiligentattentiveultracarefulscrupulouspainstakingexactpreciseaccuratecorrectthoroughstudiousexhaustivemathematicaldetailedperfectionistmethodicalparticularreligiousstrictfussyfastidioushairsplittingfinickyfinicaldemandingexactingpedanticinformal: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 or inflexibly to a belief, opinion, or way of doing something: "a rigorous teetotaler" Similar strictseveresternstringentausterespartantoughhardharshrigidcruelsavagerelentlessunsparinginflexibleauthoritariandespoticdraconianintransigentuncompromisingdemandingexactingOpposite lax
   • ▪ harsh and demanding: "my exercise regime is a little more rigorous than most" 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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2. 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.

3. 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.

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

   www.dictionary.com › browse › rigorous

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   Rigorous definition: characterized by rigor; rigidly severe or harsh, as people, rules, or discipline. See examples of RIGOROUS used in a sentence.

6. 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.”

7. www.merriam-webster.com › thesaurus › rigorousRIGOROUS Synonyms: 239 Similar and Opposite Words - ...

   www.merriam-webster.com › thesaurus › rigorous

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   Synonyms for RIGOROUS: strict, tough, harsh, authoritarian, rigid, stern, hard, severe; Antonyms of RIGOROUS: gentle, easy, lax, lenient, indulgent, tolerant, mild, kind.

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

   www.collinsdictionary.com › dictionary › english

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   adjective. 1. characterized by rigor; rigidly severe or harsh, as people, rules, or discipline. rigorous laws. 2. severely exact or accurate; precise. rigorous research. 3. (of weather or climate) uncomfortably severe or harsh; extremely inclement.

9. www.merriam-webster.com › dictionary › rigorRigor Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › rigor

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   The meaning of RIGOR is harsh inflexibility in opinion, temper, or judgment : severity. How to use rigor in a sentence.

10. www.collinsdictionary.com › us › dictionaryRIGOROUS - All you need to know about it | Collins English ...

    www.collinsdictionary.com › us › dictionary

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    Definitions of 'rigorous'. 1. A test, system, or procedure that is rigorous is very thorough and strict. [...] 2. If someone is rigorous in the way that they do something, they are very careful and thorough. [...] More.

11. www.oxfordlearnersdictionaries.com › us › definitionrigorous adjective - Definition, pictures, pronunciation and...

    www.oxfordlearnersdictionaries.com › us › definition

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    Definition of rigorous adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.