This paper proposes a new qualitative method for constructing conceptual frameworks to understand complex phenomena linked to multidisciplinary bodies of knowledge. The author redefines key terms such as "concept," "conceptual framework," and "conceptual framework analysis." A concept is defined as a network of components that define its consistency and endo-consistency. A conceptual framework is described as a network of linked concepts that collectively provide a comprehensive understanding of a phenomenon. The conceptual framework analysis method, based on grounded theory, involves an iterative process of theorization, data collection, and analysis. The method emphasizes flexibility, modification, and understanding over prediction. The paper applies this method to construct a conceptual framework for sustainable development, identifying seven key concepts: ethical paradox, natural capital stock, equity, eco-form, integrative management, utopianism, and global political agenda. The framework highlights the interwoven relationships between these concepts, providing a dynamic and interpretative approach to understanding sustainable development.This paper proposes a new qualitative method for constructing conceptual frameworks to understand complex phenomena linked to multidisciplinary bodies of knowledge. The author redefines key terms such as "concept," "conceptual framework," and "conceptual framework analysis." A concept is defined as a network of components that define its consistency and endo-consistency. A conceptual framework is described as a network of linked concepts that collectively provide a comprehensive understanding of a phenomenon. The conceptual framework analysis method, based on grounded theory, involves an iterative process of theorization, data collection, and analysis. The method emphasizes flexibility, modification, and understanding over prediction. The paper applies this method to construct a conceptual framework for sustainable development, identifying seven key concepts: ethical paradox, natural capital stock, equity, eco-form, integrative management, utopianism, and global political agenda. The framework highlights the interwoven relationships between these concepts, providing a dynamic and interpretative approach to understanding sustainable development.