Countertransference, an essential yet often misunderstood concept in clinical work, is defined as the clinician’s emotional, cognitive, and somatic responses—both conscious and unconscious—that emerge in relation to the client and shaped by the clinician’s history, identities, and internal world (Gelso & Hayes, 2007). Countertransference can become more pronounced in moments of clinical uncertainty, a concept that refers to instances in clinical practice where client contexts, needs, or therapeutic direction remain unclear, evolving, or difficult to interpret. Drawing on a larger simulation-based study of social work clinicians’ and trainees’ encounters with uncertainty, this paper explores participants’ experiences (n = 8) as they engage with two simulated clients who presented with uncertain contexts, trajectories, and needs. Findings illustrate three interrelated themes: (1) client-based uncertainty can activate negative countertransference reactions, such as frustration or judgement, particularly when clients’ ambiguity or contexts differed from those of the clinician; (2) countertransference itself can become a source of clinician uncertainty, often disrupting clinical focus, therapeutic presence, and decision-making; and, (3) clinicians’ ability to identify, reflect on, and regulate negative countertransference responses serve as a critical mediator in managing the impact of both uncertainty and emotional activation. Study findings contribute to a growing body of literature calling for a deeper understanding of countertransferential and emotional processes in clinical social work practice. Findings also suggest the importance of reflective supervision and training that supports clinicians in navigating the mutual entanglements of uncertainty and countertransference, especially in an era where both are increasingly characteristic of clinical practice.
