Frustration .. The individual's perception of an obstacle that prevents the fulfillment of his needs or the achievement of his goals or the expectation of the existence of this obstacle in the future



Frustration:
A process that includes the individual's perception of an obstacle that prevents the satisfaction of his needs, the achievement of his goals, or the expectation of this obstacle in the future.
Persistent frustration leads to a person's disappointment in the goals he wants to achieve, because of a constraint or more compelling circumstances that are greater than his will and potential, and his attempts to overcome the obstacle in pursuit of his goals and leads to self-degradation and anxiety.