sparsity vs exiguity

sparsity and exiguity both are nouns.

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

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

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

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