Dissatisfy (verb)

To cause disappointment or discontent in; to fail to meet the expectations of.

Origin:

Late middle english (also in the sense "displease, anger"): from dis- (expressing negation) + satisfy.

Examples:

1. The poor service unsatisfied the customer.
2. The new policy unsatisfied the employees.
3. The product unsatisfied the customer's needs.
4. The decision unsatisfied the majority of the shareholders.
5. The outcome of the game unsatisfied the coach and players.