Abstract This contribution aims to analyse the relationship between sustainability and justice in order to highlight its nature. reflective. There is no doubt that sustainability is the primary focus of the public debate around which they have. national and supranational strategies and practices; however, the semantic extension that this term has suffered risks of: confuse and finally dispel its meaning. The contribution therefore focuses on the significance of the concept of sustainability. stressing their “open” character. The reference to openness thus becomes the interpretative key to achieving sustainability. Justice. If sustainability is therefore inherent in a prominent representation of justice, it must flexibly become sustainable.