Synonyms for Gaudy (same or very similar meaning)
WordNet sense 1 (tastelessly showy):
brassy, cheap, flash, flashy, garish, gimcrack, loud, meretricious, tacky, tawdry, trashy, tattyWordNet sense 2 ((used especially of clothes) marked by conspicuous display):
jazzy, showy, sportyWordNet sense 3 (striking in variety and interest):
colourfulFrom the ODE community, based on WordNetadd/edit