While deflation is “a persistent decline in prices”, it often seems to have been used to refer to “a situation in which the economy is in a vicious cycle of price decline and recession” – that is, the same meaning as “deflationary recession”.
In terms of sentiment toward spending in everyday life, you might often think that a decline in prices is a favorable thing. As prices of various goods and services decline, you can get more at the same price. What is the problem (Chart 2)?