Despite the number of studies confirming a high degree of unpredictability in managerial work, little is still known about how managers' workplace learning happens within organisations in such circumstances. This paper therefore aims to contribute knowledge about managers' learning in managerial practice when work is unpredictable, by investigating how first-line managers deal with unforeseen situations and how they learn in such circumstances in everyday work. Data was collected via qualitative interviews with 40 first-line managers in Swedish elderly care. By using a theoretical framework based on practice and workplace learning theories, the paper analyses how managers address unpredictability in work through three embedded practices: maintaining, modifying and inventing. The paper goes beyond research on leadership training and leadership development by contributing knowledge about the everyday learning of first-line managers when their work is unpredictable. The unpredictable managerial work does not always create chaos; instead, there are very orderly ways of learning from dealing with unforeseen situations. The unforeseen is not as unpredictable as it might seem in managerial work. On the other hand, that which is not yet known calls for an inventing practice, which results in managers learning to take new paths that can create new practices.