Latin Alternative forms injūstitia Etymology From in- + iūstitia. Noun iniūstitia f (genitive iniūstitiae); first declension injustice, unfairness, inequity Synonym: iniūria Antonym: iūstitia Declension First-declension noun.More information singular, plural ... singular plural nominative iniūstitia iniūstitiae genitive iniūstitiae iniūstitiārum dative iniūstitiae iniūstitiīs accusative iniūstitiam iniūstitiās ablative iniūstitiā iniūstitiīs vocative iniūstitia iniūstitiae Close Descendants (all borrowings) Catalan: injustícia English: injustice French: injustice Italian: ingiustizia Portuguese: injustiça Romanian: injustiție Sicilian: gnustizzia Spanish: injusticia References “iniustitia”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & BrothersWikiwand - on Seamless Wikipedia browsing. On steroids.