Hyperdeflation is an extremely large and relatively quick level of deflation in an economy.

Hyperdeflation refers to extremely large decreases in the general prices of goods in an economy—or, correspondingly large increases in a money's purchasing power.

Hyperdeflation occurs when the purchasing power of currency rises drastically in a relatively short period of time. This increase results in debts being more pronounced, as the real value of goods and services increases and the value of the currency falls.