Is there a noun derivative of deteriorate deteris deterioration is not a noun it is a verb the act of deteriorating you want the noun a word for the stuff that is deteriorating?
The noun for the stuff that is deteriorating is whatever the
stuff is; for example, the deteriorating house or a deteriorating
painting; the remains of the deteriorated city.
The past tense, deteriorated, can also be used as a noun.
Example sentence:
The group that lived under the underpass were the deteriorated
and the dejected.