Decolonising work in Higher Education (HE) has become increasingly mainstreamed. One issue is the relationship between such work and that of equality, diversity and inclusivity (EDI), or the potential reduction and co-option of decolonising for EDI purposes. This article discusses the characterisations of, and drivers for, decolonising inside UK HE, and then situates this against one, institution-wide programme of work. This programme sought to investigate how staff and students have understood the concept of decolonising, and to evaluate the limits of this work. Analysing surveys and interviews using a grounded theory approach suggested a moderate or limited view of decolonising work, and supports concerns that decolonising is losing its radical edge. Echoing work on the possibilities for epistemic and racial justice from inside capitalist institutions infused with the logics of coloniality, the argument questions whether it is possible to know the University otherwise.