Abstract Feminist social theories, especially intersectional and decolonial ones, have been footnotes at best in practice-oriented research in international relations. This disciplinary exclusion of gender studies’ concepts from “international practice theories” (IPTs) or the "practice turn" has marginalized inquiries into power and reflexivity in action. As a result, IPTs have failed to theorize how practitioners’ reflexivity is shaped by local manifestations of systemic lines of difference like race, gender, coloniality, or class. This Theory Note argues that intersectional and decolonial feminist approaches can address this gap. We demonstrate that positionality and privilege condition practical reflexivity by shaping (1) normative interpretations of the world, (2) the content of social critique, and (3) the reception of such critique. Taking feminists as foundational theorists of international practices is critical to addressing some ontological challenges encountered by current IPT scholarship. In this Theory Note, we develop a productive conversation between the two bodies of literature around concepts of background knowledge and competence, which allows for a better understanding of the interplay of structural power and individual reflexivity in everyday interactions.