sparsity vs meagreness

sparsity and meagreness both are nouns.

Word	Noun	Adjective	Verb	Adverb
sparsity	Yes	No	No	No
meagreness	Yes	No	No	No

As nouns, meagreness is a hypernym of sparsity; that is, meagreness is a word with a broader meaning than sparsity:

Other hypernyms of sparsity include exiguity, leanness, meagerness, poorness, scantiness, scantness.

sparsity (noun)	meagreness (noun)
the property of being scanty or scattered; lacking denseness	the quality of being meager