neediness vs impoverishment

neediness and impoverishment both are nouns.

Word	Noun	Adjective	Verb	Adverb
neediness	Yes	No	No	No
impoverishment	Yes	No	No	No

As nouns, impoverishment is a hypernym of neediness; that is, impoverishment is a word with a broader meaning than neediness:

neediness: a state of extreme poverty
impoverishment: the state of having little or no money and few or no material possessions

Other hypernyms of neediness include poorness, poverty.

neediness (noun)	impoverishment (noun)
the quality of needing attention and affection and reassurance to a marked degree	the act of making someone poor
a state of extreme poverty	the state of having little or no money and few or no material possessions