loudness vs meretriciousness

loudness and meretriciousness both are nouns.

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

As nouns, loudness and meretriciousness are synonyms defined as:

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

loudness (noun)	meretriciousness (noun)
the magnitude of sound (usually in a specified direction)	an appearance of truth that is false or deceptive; seeming plausibility
tasteless showiness	tasteless showiness