This article proposes a framework for capability development of adult educators (AEs) in Singapore. Globalisation, demographic changes and digital innovation, accelerated by the COVID-19 pandemic, have accentuated the importance of adult education and changing role of AEs. The immediate implications of these effects on the professionalism of AEs and the significance of their development trajectories are acute. With an increased focus on the need to ensure AEs are current in both their pedagogic and domain competences, we introduce discussions on the need to develop a conceptual framework to generate a deeper understanding of their knowledge, skills, attitudes, beliefs and practices of AEs. This framework can be used by practitioners as a tool to facilitate professional reflection and development, and by policy makers to support continued improvements to the quality of adult education. Our overall aim is to promote the importance of varied and continued opportunities for the professional development of AEs at policy, organisational and individual levels.