Glitzy means showily glamorous. A glitzy opening, a glitzy hotel, rather too glitzy for the street it stands in.
It is faintly disparaging, since it praises the surface and quietly implies there is nothing beneath. The word came into English through American show business and is nearly always used of an event rather than a person.
1adjectiveglitzyShowily glamorous.
“The whole glitzy evening cost more than the film had.”
glitzy is a quality.