[{"Bold_text": "noun", "List Items": ["strictness, severity, or harshness, as in dealing with people.Synonyms: inflexibility , stringency", "the full or extreme severity of laws, rules, etc.", "severity of living conditions; hardship; austerity:the rigor of wartime existence.", "a severe or harsh act, circumstance, etc.Synonyms: cruelty", "scrupulous or inflexible accuracy or adherence:the logical rigor of mathematics.", "severity of weather or climate or an instance of this:the rigors of winter.", "Pathology.a sudden coldness, as that preceding certain fevers; chill.", "Physiology.a state of rigidity in muscle tissues during which they are unable to respond to stimuli due to the coagulation of muscle protein.", "Obsolete.stiffness or rigidity."]}]