flashiness vs meretriciousness

flashiness and meretriciousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
flashiness	Yes	No	No	No
meretriciousness	Yes	No	No	No

As nouns, flashiness and meretriciousness are synonyms defined as:

Other synonyms of flashiness include brashness, garishness, gaudiness, glitz, loudness, tawdriness.

flashiness (noun)	meretriciousness (noun)
tasteless showiness	an appearance of truth that is false or deceptive; seeming plausibility
	tasteless showiness