garishness vs glitz

garishness and glitz both are nouns.

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

As nouns, garishness and glitz are synonyms defined as:

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

garishness (noun)	glitz (noun)
tasteless showiness	tasteless showiness
strident color or excessive ornamentation