Unlived Potential occupies a signal position in the depth-psychological tradition as the psychic residue of capacities, vocations, and modes of being that consciousness has declined, suppressed, or simply failed to actualize. The concept draws energy from multiple theoretical streams simultaneously. In the Jungian lineage, it appears most concretely in the doctrine of the shadow — von Franz establishes that an unlived possibility of consciousness or creativity does not lie dormant but becomes actively destructive, turning against others who dare what the individual has refused. Johnson extends this into the therapeutic domain, arguing that Active Imagination allows symbolic enactment of unlived potentialities, rendering external realization unnecessary. From the existential quarter, Yalom and Rank formalize the phenomenon as the ground of existential guilt: the transgression against oneself constitutes a distinct moral category, producing what Rank calls the weight of ‘the unused life, the unlived life in us.’ Hollis and Liz Greene locate unlived potential in intergenerational transmission: the parent’s unrealized life becomes the child’s psychological inheritance, a haunting legacy that shapes character without ever being consciously acknowledged. Thomson reclaims Jungian typology itself as a cartography of unlived possibilities demanding attention. Across all these positions, the consensus is stark: unlived potential does not simply vanish — it accumulates pressure, seeking expression through symptom, projection, or fate.