A sudden feeling of cold with shivering accompanied by a rise in temperature, often with copious sweating, especially at the onset or height of a fever.
- 1.1short for rigor mortis
Late Middle English from Latin, literally ‘stiffness’, from rigere ‘be stiff’.
1The quality of being extremely thorough, exhaustive, or accurate.
meticulousness, thoroughness, carefulness, attention to detail, diligence, scrupulousness, exactness, exactitude, precision, accuracy, correctness, strictness, punctiliousness, conscientiousness
- ‘his analysis is lacking in rigor’
- 1.1Severity or strictness.
strictness, severity, sternness, stringency, austerity, toughness, hardness, harshness, rigidity, inflexibility
- ‘the full rigor of the law’
- 1.2rigorsDemanding, difficult, or extreme conditions.
hardship, harshness, severity, adversity, suffering, privation, ordeal, misery, distress, trial
- ‘the rigors of a harsh winter’
Late Middle English from Old French rigour from Latin rigor ‘stiffness’.