Added 9 October 2026 convexness noun Categories: Describing WordsObscure Words noun ! Definition from Wiktionary (CC BY-SA). More about convexness at Wordnik → Where our words come from → The state or quality of being convex. Related Words: convexityconvexednessconcavo-convexitybiconvexityconvexivityhyperconvexityconcavenessconcavityquasiconvexitysubconvexityquasiconcavitycurvaceousness Back to today's word