chichi vs jauntiness

chichi and jauntiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
chichi	Yes	Yes	No	No
jauntiness	Yes	No	No	No

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

Other hyponyms of chichi include dapperness, nattiness, rakishness.

chichi (noun)	jauntiness (noun)
elegance by virtue of being fashionable	stylishness as evidenced by a smart appearance
someone who dresses in a trendy fashionable way	a breezy liveliness

chichi (adjective)	jauntiness (adjective)
affectedly trendy and fashionable