The democratic transition in Tunisia was unique in the Arab region before it veered off course. The current political crisis is the most precarious, disruptive moment yet seen in the country. This study aims to highlight the reasons for the failure of the Tunisian democratic transition and the lessons that can be drawn from the experience. Beginning with a definition of democratic transition as a theoretical introduction, the study uses a descriptive analytical approach to describe and explain the failure of the democratic transition in Tunisia. It concludes that despite the existence of various instruments of democratisation in Tunisia, such as the peaceful transfer of power, guarantees for rights and freedoms in Tunisian constitutions, a consensual constitution, and participatory transitional institutions, the transition in Tunisia has faltered. The most important lessons the study draws from the stalled transition are: economic development is an important factor in democratisation; the peaceful rotation of power is not sufficient to ensure the success of the transition; genuine consensus must be built between elites and the opposition; and finally, the lack of specific constitutional institutions may hinder the democratic transition.