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rigorous

adjective (CAREFUL)
 
 
/ˈrɪɡ.ər.əs/ US  /-ɚ-/ approving

Definition

careful to look at or consider every part of something to make certain it is correct or safe: rigorous testing/checking/methodsAccurate and exactCautious and vigilantPaying attention and being careful rigorously
 
 
/-li/ adverb
(Definition of rigorous adjective (CAREFUL) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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