loud vs flashy

loud and flashy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
loud	No	Yes	No	Yes
flashy	No	Yes	No	No

As adjectives, loud and flashy are synonyms defined as:

Other synonyms of loud include brassy, cheap, flash, garish, gaudy, gimcrack, meretricious, tacky, tatty, tawdry, trashy.

loud (adjective)	flashy (adjective)
characterized by or producing sound of great volume or intensity	(used especially of clothes) marked by conspicuous display
(used chiefly as a direction or description in music) indicating that said piece or segment should be played loudly	tastelessly showy
tastelessly showy

loud (adverb)	flashy (adverb)
with relatively high volume