recession vs incurvation

recession and incurvation both are nouns.

Word	Noun	Adjective	Verb	Adverb
recession	Yes	No	No	No
incurvation	Yes	No	No	No

As nouns, incurvation is a hypernym of recession; that is, incurvation is a word with a broader meaning than recession:

Other hypernyms of recession include concave shape, concavity, incurvature.

recession (noun)	incurvation (noun)
the act of becoming more distant	the action of creating a curved shape
the act of ceding back	a shape that curves or bends inward
the withdrawal of the clergy and choir from the chancel to the vestry at the end of a church service
a small concavity
the state of the economy declines; a widespread decline in the GDP and employment and trade lasting from six months to a year