poorness vs scantiness

poorness and scantiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
poorness	Yes	No	No	No
scantiness	Yes	No	No	No

As nouns, poorness and scantiness are synonyms defined as:

Other synonyms of poorness include exiguity, leanness, meagerness, meagreness, scantness.

poorness (noun)	scantiness (noun)
the quality of being poorly made or maintained	the quality of being meager
less than adequate	Of a garment, the property of being very small, light, or revealing.
the quality of being meager
the state of having little or no money and few or no material possessions