International and European intergovernmental organisations and the adult education research community all emphasise the importance of well-qualified personal working in the field of adult education. However, as previous research has shown, the diversity of the field is a 'challenge' to the greater professionalisation of adult education. Therefore, this paper investigates how the European Union conceptualises adult education professionalisation in the 21st century and how this is reflected in the Slovene adult education policy. For this purpose, the core official European Union and Slovene policy documents on the professionalisation of adult educators were analysed using documentary analysis. The theoretical framework of the Europeanisation of education was used, along with international and comparative perspectives in studies of adult education. Our findings indicate that in the Slovene context, the emphasis is on the recognition of different professional roles and competences that adult educators need to work successfully in different contexts rather than on the unification of their competences, which can be found in the European context.