deflation vs deflationary

deflation is a noun but deflationary is not a noun.

Word	Noun	Adjective	Verb	Adverb
deflation	Yes	No	No	No
deflationary	No	Yes	No	No

deflation (noun)	deflationary (noun)
the act of letting the air out of something
a contraction of economic activity resulting in a decline of prices
(geology) the erosion of soil as a consequence of sand and dust and loose rocks being removed by the wind

deflation (adjective)	deflationary (adjective)
	associated with or tending to cause decreases in consumer prices or increases in the purchasing power of money