Frustration

In psychology, frustration is a common emotional response to opposition. Related to anger and disappointment, frustration comes from the perceived resistance to the fulfillment of personal will. The greater the obstruction, and the greater the will, the more the frustration is likely to be.

In condensed matter physics, frustration (or geometrical frustration) is the geometrical properties of the crystal lattice or the presence of conflicting atomic forces that prevent the simultaneous minimization of the interaction energies acting at a given site. The forces prevent the substance from being completely frozen.