This study presents an empirical examination of the evolution in adult education globally, analyzing the final reports from the 1st to the 7th UNESCO International Conferences on Adult Education, spanning 1949 to 2022. Employing topic modeling and TF-IDF analysis, it identifies central themes such as foundational concepts in adult education, the impact of societal changes like climate change, and a heightened focus on marginalized groups. The analysis highlights that the seventh conference placed significant emphasis on the necessity for transformative adult education to foster sustainable development. Initially, discussions centered around international cooperation, UNESCO's role in socio-economic development, policy-making, and research in adult education. However, post the fifth CONFINTEA, the emphasis shifted towards sustainable development, literacy, social equality, quality assurance, and broader social development. This trend reflects UNESCO's growing acknowledgment of the pivotal role adult education plays in addressing current societal challenges and promoting transformative change.