Abstract In an approach which aims at reconstructing the concept of adab , we evoke in this study three figures thought (ʿAbdallah b. al-Muqaffaʿ m. 142/759, ʿAbd al-Ḥamīd al-Kātib 132/750 and Abū ʿUtman Baḥr al-Ǧāḥiz 255/868), by comparing their styles intellectual attitudes same time field political system times. Our objective is to show how each studied takes care updates it. We speak about ...