parsimony vs littleness

parsimony and littleness both are nouns.

Word	Noun	Adjective	Verb	Adverb
parsimony	Yes	No	No	No
littleness	Yes	No	No	No

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

Other hyponyms of parsimony include pettiness, smallness, miserliness.

parsimony (noun)	littleness (noun)
extreme care in spending money; reluctance to spend money unnecessarily	the property of having a relatively small size
extreme stinginess	lack of generosity in trifling matters
	the property of having relatively little strength or vigor