rigor

/ˈrɪɡər/
noun
  1. The quality of being strict, thorough, and demanding, especially in rules or standards.
    • The new safety regulations were applied with full rigor.
    • The school is known for the academic rigor of its math program.
    • The scientific study was conducted with great rigor to ensure accurate results.
  2. Severe or harsh conditions; difficulty.
    • She was not prepared for the rigors of running a marathon.
    • The rigors of military training prepared them for any challenge.
    • The explorers endured the rigors of the Arctic winter.
  3. A sudden feeling of cold with shivering, often as a symptom of a fever or illness.
    • The patient developed a rigor and was given a blanket.
    • After the fever broke, he experienced a brief rigor.
    • The doctor noted the rigor as a sign of infection.
Antonyms
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