meagreness vs spareness

meagreness and spareness both are nouns.

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

As nouns, spareness is a hyponym of meagreness; that is, spareness is a word with a more specific, narrower meaning than meagreness:

Other hyponyms of meagreness include wateriness, abstemiousness, sparseness, sparsity, thinness, thinness.

meagreness (noun)	spareness (noun)
the quality of being meager	the property of being scanty or scattered; lacking denseness
	the property of having little body fat