Injustice is the lack of or opposition to justice, either in reference to a particular event or act, or as a larger status quo. The term generally refers to misuse, abuse, neglect, or malfeasance that is uncorrected or else sanctioned by a legal system. Misuse and abuse with regard to a particular case or context may represents a systemic failure to serve the cause of justice. Injustice means "unfairness." Injustice may be classified as a different system in comparison to different countries concept of justice and injustice. According to Plato, he doesn't know what justice is but he knows what justice is not.
From Wikipedia
