modishness vs stylishness

modishness and stylishness both are nouns.

Word	Noun	Adjective	Verb	Adverb
modishness	Yes	No	No	No
stylishness	Yes	No	No	No

As nouns, modishness and stylishness are synonyms defined as:

Other synonyms of modishness include chic, chichi, chicness, last word, smartness, swank.

modishness (noun)	stylishness (noun)
elegance by virtue of being fashionable	elegance by virtue of being fashionable