Adjectives

(a)brassy, brasslikeresembling the sound of a brass instrument
(s)brassy, cheap, flash, flashy, garish, gaudy, gimcrack, loud, meretricious, tacky, tatty, tawdry, trashytastelessly showy“a flash car”, “a flashy ring”, “garish colors”, “a gaudy costume”, “loud sport shirts”, “a meretricious yet stylish book”, “tawdry ornaments”
(s)audacious, barefaced, bodacious, bald-faced, brassy, brazen, brazen-faced, insolentunrestrained by convention or propriety“an audacious trick to pull”, “a barefaced hypocrite”, “the most bodacious display of tourism this side of Anaheim” (Los Angeles Times), “bald-faced lies”, “brazen arrogance”, “the modern world with its quick material successes and insolent belief in the boundless possibilities of progress” (Bertrand Russell)