acuitynounfeminine/ɐkwiˈðaðɨ/mediuma·cui·da·dePortuguesEnglishEspanolFrancaisDefinitionSharpness, keenness, or acuity.The test measures visual acuity.His mental acuity was remarkable for his age.synsharpnesskeennessacuityEtymologyDo latim 'acuitas, -atis'.Related wordsagudoacuadoacuidade visual