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   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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