The institutionalization of sustainability agendas on the local and global levels has largely failed to deliver the promised change. In this essay, we develop the idea of sustainability metamorphosis as a way to break with the pathological paradigm of sustainable development that weakens society's capacity to transform in the face of global crises. Sustainability metamorphosis, in our understanding, draws on the Bakthian perspective of carnivalization and dialogical truth. In this sense, sustainability metamorphosis is an outlook on change in society and a source of strategies for long-term societal change. Our understanding of metamorphosis is inspired by the historical and literary understandings that saw ungraspable forces, acting upon both inner and outer worlds, and suspended hierarchies as the sources of necessary but inconvenient change.