Tinselly

1. (a.) Like tinsel; gaudy; showy, but cheap.

2. (adv.) In a showy and cheap manner.

Thesaurus Entries

blinking, blinky, coruscant, coruscating, glimmering, glimmerous, glimmery, glistening, glistering, glittering, glittery, scintillant, scintillating, scintillescent, shimmering, shimmery, spangly, sparkling, twinkling, twinkly