American English

Definition of rigorous adjective from the Oxford Advanced American Dictionary



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  1. 1done carefully and with a lot of attention to detail synonym thorough a rigorous analysis Few people have gone into the topic in such rigorous detail. The second team adopted a much more rigorous approach to the problem.
  2. 2demanding that particular rules, processes, etc. are strictly followed synonym strict The work failed to meet their rigorous standards.
adverb The country's press is rigorously controlled.
See the Oxford Advanced Learner's Dictionary entry: rigorous