rigour
noun
[ ˈrɪɡə ]
• the quality of being extremely thorough and careful.
• "his analysis is lacking in rigour"
Similar:
meticulousness,
thoroughness,
carefulness,
attention to detail,
diligence,
scrupulousness,
exactness,
exactitude,
precision,
accuracy,
correctness,
strictness,
punctiliousness,
conscientiousness,
nicety,
Origin:
late Middle English: from Old French rigour from Latin rigor ‘stiffness’.