garishness vs meretriciousness

garishness and meretriciousness both are nouns.

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

As nouns, garishness and meretriciousness are synonyms defined as:

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

garishness (noun)	meretriciousness (noun)
tasteless showiness	an appearance of truth that is false or deceptive; seeming plausibility
strident color or excessive ornamentation	tasteless showiness