Submitted by György Chityil ... on Sat, 01/20/2018 - 01:20 Hierarchy: AdjectiveDescription: {{obsolete}} Improper, not according with fact or reason; wrong, irregular. {{defdate|14th-17th c.}}Ngram: unproperNgram Text: unproperSource: WiktionaryIssue: 0Wiktionary tag: 14th-17th c.Ngram Count: 1