rigor/ˈrɪɡər/Pluralrigors1the quality of thoroughness and accuracy in approach or analysisCopyMaintaining rigor in the editorial process ensures the credibility of the publication.CopyStudents at the top university are expected to maintain a high level of intellectual rigor in their research.CopySynonyms: cogencyvalidity2something hard to endureCopySynonyms: rigorousnessseverenessgrimnessseverityhardshipasperity